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Bronson Messer OLCF
June 4, 2020

OLCF Names New Director of Science

Bronson Messer—a computational astrophysicist, Distinguished Scientist in the Scientific Computing and Theoretical Physics groups at the US Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL), and a former Jeopardy! champion—has been named the new director of science for the Oak Ridge Leadership Computing Facility (OLCF). As director of science,…
August 1, 2019

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…
Titan supercomputer OLCF
June 28, 2019

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…
June 8, 2018

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…
April 9, 2012


To submit an application, please visit for details about the proposal requirements. The U.S. Department of Energy's Office of Science provides a portfolio of high-performance computing facilities housing some of the world's most advanced supercomputers. These leadership computing facilities enable world-class research for significant advances in science.  Open to…