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Summit’s Bonus Year of Scientific Achievement

Leadership-class supercomputers dedicated to open science are not built to last forever. In fact, they have a limited lifespan by design. No matter how powerful they may be on launch day, advancements in computing technology and changing computing needs will push them closer to obsolescence with each passing year until…
Coury Turczyn
December 3, 2024
whisper jetFeaturedIndustry

Flying Quieter and Cleaner

From a nondescript industrial building in the small town of Crossville, Tennessee, the team of engineers at Whisper Aero is planning a revolution in aviation technology. Previously home to a publisher of magazines — including, coincidentally, Trade-A-Plane, an airplane sales publication started in 1937 — the long-empty property’s cavernous spaces…
Coury Turczyn
August 12, 2024
NASA Mars simulationScience

Planning for a Smooth Landing on Mars

A U.S. mission to land astronauts on the surface of Mars will be unlike any other extraterrestrial landing ever undertaken by NASA. Although the space agency has successfully landed nine robotic missions on Mars since its first surface missions in 1976 with the Viking Project, safely bringing humans to Mars…
Coury Turczyn
February 29, 2024
Exascale new frontier OLCF BannerIndustryScienceTechnology

Exascale’s New Frontier: Combustion-Pele

PI: Jacqueline Chen, Sandia National Laboratories In 2016, the Department of Energy’s Exascale Computing Project (ECP) set out to develop advanced software for the arrival of exascale-class supercomputers capable of a quintillion (1018) or more calculations per second. That meant rethinking, reinventing, and optimizing dozens of scientific applications and software…
Matt Lakin
January 5, 2024
Exascale new frontier OLCF BannerScience

Exascale’s New Frontier: MFIX-Exa

PI: Jordan M. Musser, National Energy Technology Laboratory In 2016, the Department of Energy’s Exascale Computing Project set out to develop advanced software for the arrival of exascale-class supercomputers capable of a quintillion (1018) or more calculations per second. That leap meant rethinking, reinventing, and optimizing dozens of scientific applications and…
Coury Turczyn
October 19, 2023
IndustryScienceTechnology

Learning With the Flow

The bigger the swirl, the bigger the problem — and the bigger the computing power needed to solve it. Computational fluid dynamics researchers have spent decades studying how liquids and gases flow in and around such machinery as airplane wings, propeller blades and jet engines in search of faster speeds…
Matt Lakin
May 19, 2023
Science

A New Parallel Strategy for Tackling Turbulence on Summit

Turbulence, the state of disorderly fluid motion, is a scientific puzzle of great complexity. Turbulence permeates many applications in science and engineering, including combustion, pollutant transport, weather forecasting, astrophysics, and more. One of the challenges facing scientists who simulate turbulence lies in the wide range of scales they must capture…
OLCF Staff Writer
November 13, 2019
Titan supercomputer OLCFTechnology

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
People

Faces of Summit: Building a Better Summit

The Faces of Summit series shares stories of the people behind America’s top supercomputer for open science, the Oak Ridge Leadership Computing Facility’s Summit. The IBM AC922 machine launched in June 2018. When the Oak Ridge Leadership Computing Facility’s (OLCF’s) newest supercomputer, Summit, comes on line in 2018 at the…
Katie Elyce Jones
February 27, 2018
People

Faces of Summit: Making Spaces

Bart Hammontree began working as a subcontractor at ORNL in 1992. Now serving in a full-time position as a member of the UT-Battelle Development Corporation, Hammontree has overseen construction and retrofit projects both small and large in scope. The Faces of Summit series shares stories of the people behind America’s…
Josh Cunningham
October 19, 2017
Science

One Billion Processor Hours Awarded to 22 Projects through ALCC

ALCC’s mission is to provide high-performance computing resources to projects that align with DOE’s broad energy mission, with an emphasis on high-risk, high-return simulations. The US Department of Energy (DOE) Office of Science has awarded nearly 1 billion processor hours to 22 projects at the Oak Ridge Leadership Computing Facility…
Maleia Wood
July 5, 2016
People

Titan Goes on Tour

OLCF staff helped unveil ORNL’s Traveling Science Fair supercomputing exhibit at the USA Science and Engineering Festival in Washington DC.
Jonathan Hines
May 10, 2016
Science

Titan Takes on the Big One

A team led by Thomas Jordan of the Southern California Earthquake Center, headquartered at the University of Southern California in Los Angeles, is using the Titan supercomputer to develop physics-based earthquake simulations to better understand earthquake systems, including the potential seismic hazards from known faults and the impact of strong…
Miki Nolin
November 10, 2015