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Astrophysics

Scientists Use Summit Supercomputer to Explore Exotic Stellar Phenomena
3 months ago

Scientists Use Summit Supercomputer to Explore Exotic Stellar Phenomena

By  •  3 months ago  •  Featured, Science

Understanding how a thermonuclear flame spreads across the surface of a neutron star — and what that spreading can tell us about the relationship between the neutron star’s …
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Peering into the Universe’s Dark Matter
12 months ago

Peering into the Universe’s Dark Matter

By  •  12 months ago  •  Featured, Science

A research team from the University of California, Santa Cruz, have used the Oak Ridge Leadership Computing Facility’s Summit supercomputer to run one of the most complete cosmological …
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Exascale Blastoff
12 months ago

Exascale Blastoff

By  •  12 months ago  •  Featured, Industry, Science

With the world’s first exascale supercomputer now fully open for scientific business, researchers can thank the early users who helped get the machine up to speed.

Frontier set a new …
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OLCF researchers win R&D 100 award
2 years ago

OLCF researchers win R&D 100 award

By  •  2 years ago  •  Featured, Industry, People

A team that includes researchers from the Oak Ridge Leadership Computing Facility recently received an R&D 100 Award for their work on Flash-X, a multiphysics simulation software package with applications …
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Forging Ahead with Frontier: Ready to Crush Science
2 years ago

Forging Ahead with Frontier: Ready to Crush Science

By  •  2 years ago  •  Featured, Science

Computational users at the Oak Ridge Leadership Computing Facility (OLCF) are running scientific codes on Frontier’s architecture in the form of a powerful test system at the OLCF called Crusher.


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From Summit to the Stars
2 years ago

From Summit to the Stars

By  •  2 years ago  •  Featured, Science, Technology

The Oak Ridge Leadership Computing Facility (OLCF) wrapped up its 2021 hackathon with teams from around the globe working on projects that spanned the cosmos.

Ten teams with a total of …
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Unraveling the “Big Boom”
3 years ago

Unraveling the “Big Boom”

By  •  3 years ago  •  Featured, Science

Simulations performed on Oak Ridge National Laboratory’s Summit supercomputer provide a more detailed look at how stars die and could help unlock new insights into the origins of Earth’s heavy …
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Scientists Tap Supercomputing to Study Exotic Matter in Stars
3 years ago

Scientists Tap Supercomputing to Study Exotic Matter in Stars

By  •  3 years ago  •  Featured, Science

At the heart of some of the smallest and densest stars in the universe lies nuclear matter that might exist in never-before-observed exotic phases. Neutron stars, which form when the …
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DOE and NCSA Supercomputing Speed Studies into Black Hole Origins
4 years ago

DOE and NCSA Supercomputing Speed Studies into Black Hole Origins

By  •  4 years ago  •  Featured, Science

Five years ago this month, the Laser Interferometer Gravitational-wave Observatory, or LIGO, made its first detection of gravitational waves, marking a historic event in the astrophysics community. Since then, LIGO …
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OLCF Names New Director of Science
4 years ago

OLCF Names New Director of Science

By  •  4 years ago  •  People

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!
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Simulating the Stars at Exascale Requires HIP Solutions
4 years ago

Simulating the Stars at Exascale Requires HIP Solutions

By  •  4 years ago  •  Technology

As GPU architectures have become the standard for scientific computing, application teams have had to retrofit their scientific codes to run on new systems. Even teams with codes that have …
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The Last User of Titan
4 years ago

The Last User of Titan

By  •  4 years ago  •  People, Science

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 …
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Galactic Winds Demystified
5 years ago

Galactic Winds Demystified

By  •  5 years ago  •  Science

Using the Titan supercomputer at the US Department of Energy’s Oak Ridge National Laboratory, a team of astrophysicists created a set of galactic wind simulations of the highest resolution ever …
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PPPL’s Will Fox Honored for Research on Titan
5 years ago

PPPL’s Will Fox Honored for Research on Titan

By  •  5 years ago  •  Science

Will Fox, a research scientist at the US Department of Energy’s (DOE’s) Princeton Plasma Physics Laboratory (PPPL) and long-time user of the Oak Ridge Leadership Computing Facility (OLCF), has received …
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Science at Exascale: Tracing the Origins of Matter in Star Explosions
5 years ago

Science at Exascale: Tracing the Origins of Matter in Star Explosions

By  •  5 years ago  •  Science

Frontier is an exascale computer planned for delivery at the Oak Ridge Leadership Computing Facility in 2021. The system will support a wide range of scientific applications for advanced modeling …
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OLCF Scientist Talks Early Summit Results at APS Meeting
5 years ago

OLCF Scientist Talks Early Summit Results at APS Meeting

By  •  5 years ago  •  People

Bronson Messer, a computational scientist at the Oak Ridge Leadership Computing Facility (OLCF), gave an invited talk at the American Physical Society’s (APS’s) “Quarks to the Cosmos” April meeting in …
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