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Supercomputing

Science

New Geometric Model Improves Predictions of Fluid Flow in Rock

Deep beneath the Earth’s surface, oil and groundwater percolate through gaps in rock and other geologic material. Hidden from sight, these critical resources pose a significant challenge for scientists seeking to evaluate the state of such two-phase fluid flows. Fortunately, the combination of supercomputing and synchrotron-based imaging techniques enables more…
Katie Elyce Jones
February 6, 2019
PeopleTechnology

Ready for Science: Summit Completes System Acceptance

A year-long acceptance process for the 200-petaflop, IBM AC922 Summit supercomputer at the US Department of Energy’s Oak Ridge National Laboratory (ORNL) is complete. Acceptance testing ensures that the supercomputer and its file system meet the functionality, performance, and stability requirements agreed upon by the facility and the vendor. To…
Katie Elyce Jones
December 20, 2018
IndustryScience

Pinnacle Engines Develops Efficient, Low-Emission Gasoline Engine Using Supercomputing

https://vimeo.com/304393904The Pinnacle Engines opposed-piston cylinder shown in three different views. Visualizations illustrate the generation of coherent flow structures and their collapse during the compression stroke, which leads to high levels of turbulence before combustion. Pinnacle Engines researchers analyzed fluid dynamics and combustion behavior to optimize the design of the combustion…
Katie Elyce Jones
December 3, 2018
People

Summit Facility Design Team Snags Tennessee Energy Award

The project team for the design and construction of the Summit supercomputing facility at the US Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL) received the Tennessee Chamber of Commerce and Industry’s (TCCI’s) 2018 Energy Excellence Award. Operations Manager Stephen McNally of the Oak Ridge Leadership Computer Facility (OLCF),…
Katie Elyce Jones
December 3, 2018
Technology

Summit Speeds Calculations in the Search for Exotic Particles

In pursuit of numerical predictions for exotic particles, researchers are simulating atom-building quark and gluon particles over 70 times faster on Summit, the world’s most powerful scientific supercomputer, than on its predecessor Titan at the US Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL). The interactions of quarks and…
Katie Elyce Jones
September 17, 2018
Technology

Summit by the Numbers

Download the high-resolution file. The US Department of Energy’s Summit supercomputer located at Oak Ridge National Laboratory enables scientists to simulate complex physical systems and make predictions critical to advancing research and development. Summit’s “smart” architecture merges GPU acceleration and dense local memory to support expanding applications in data science…
Katie Elyce Jones
June 8, 2018
particle physics, nuclear physics, supercomputingScience

With Supercomputing Power and an Unconventional Strategy, Scientists Solve a Next-Generation Physics Problem

Using the Titan supercomputer at the Oak Ridge Leadership Computing Facility (OLCF), a team of researchers has calculated a fundamental property of protons and neutrons, known as the nucleon axial coupling, with groundbreaking precision. Led by André Walker-Loud of the US Department of Energy’s (DOE’s) Lawrence Berkeley National Laboratory, the…
Katie Elyce Jones
May 30, 2018
OLCF’s Chris Fuson is working with Summit vendors and OLCF team members to ready Summit’s batch scheduler and job launcher.People

Faces of Summit: Preparing to Launch

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. At the Oak Ridge Leadership Computing Facility (OLCF), supercomputing staff and users are already talking about what kinds…
Katie Elyce Jones
May 1, 2018
People

Faces of Summit: Programming with Purpose

OLCF postdoctoral research associate Andreas Tillack joined the OLCF’s Center for Accelerated Application Readiness efforts in November 2016, bringing with him extensive experience in programming, physics, and chemistry. The Faces of Summit series shares stories of the people behind America’s top supercomputer for open science, the Oak Ridge Leadership Computing…
Jonathan Hines
April 16, 2018
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
Science

GM Revs up Diesel Combustion Modeling on Titan Supercomputer

https://vimeo.com/260126956 Most car owners in the United States do not think twice about passing over the diesel pump at the gas station. Instead, diesel fuel mostly powers our shipping trucks, boats, buses, and generators—and that is because diesel engines are about 10 percent more fuel-efficient than gasoline, saving companies money…
Katie Elyce Jones
February 7, 2018
Technology

New Discoveries Within ‘SIGHT’

SIGHT visualization from a project led by University of Virginia’s Leonid Zhigilei to explore how lasers transform metal surface. At the home of America’s most powerful supercomputer, the Oak Ridge Leadership Computing Facility (OLCF), researchers often simulate millions or billions of dynamic atoms to study complex problems in science and…
Katie Elyce Jones
February 7, 2018
Events

Ready for 25 More Years

Oak Ridge National Laboratory (ORNL) Director Thomas Zacharia, far right, leads a keynote panel “Building the Conditions for Innovation” that reflects on the Oak Ridge Leadership Computing Facility’s history and predicts what the future of high-performance computing may look like. Panel members include (left to right): Robert Ward (University of…
Katie Elyce Jones
November 10, 2017
Science

Sodium Shakedown in Dopamine Research

The chemical neurotransmitter dopamine is critical to sending and receiving signals in the nervous system linked to motor movements, learning, and habit formation, which is why many therapies for drug addiction and diseases related to the aging brain, such as Parkinson’s disease, target dopamine uptake. Central to uptake is the…
Katie Elyce Jones
September 19, 2017