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Astrophysics

Galactic winds demystified
3 weeks ago

Galactic winds demystified

By  •  3 weeks ago  •  Featured, 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
1 month ago

PPPL’s Will Fox Honored for Research on Titan

By  •  1 month 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
4 months ago

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

By  •  4 months 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
4 months ago

OLCF Scientist Talks Early Summit Results at APS Meeting

By  •  4 months 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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OLCF 25: Revealing Supernova Secrets
2 years ago

OLCF 25: Revealing Supernova Secrets

By  •  2 years ago  •  OLCF History

In 2017, the Oak Ridge Leadership Computing Facility celebrated 25 years of leadership in high-performance computing. This article is part of a series summarizing a dozen significant contributions to science …
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OLCF 25: Illuminating Dark Matter
2 years ago

OLCF 25: Illuminating Dark Matter

By  •  2 years ago  •  OLCF History

In 2017, the Oak Ridge Leadership Computing Facility celebrated 25 years of leadership in high-performance computing. This article is part of a series summarizing a dozen significant contributions to science …
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OLCF Team Resolves Performance Bottleneck in OpenACC Code
3 years ago

OLCF Team Resolves Performance Bottleneck in OpenACC Code

By  •  3 years ago  •  Technology

A team at the Oak Ridge Leadership Computing Facility recently addressed a performance bottleneck in one portion of an OLCF user’s application. Because of its efforts, the user’s team saw a sixfold performance improvement in the code.
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Delving into the Dark Sky
3 years ago

Delving into the Dark Sky

By  •  3 years ago  •  Science

When Mike Warren was a graduate student 20 years ago, computational astrophysicists were conducting simulations of the universe’s structure with a million particles representing large masses of matter like galaxy …
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Illuminating the Universe’s Ignition
3 years ago

Illuminating the Universe’s Ignition

By  •  3 years ago  •  Science

A multi-institution team has been using Titan to create the largest fully-coupled simulation of the universe’s Epoch of Reionization.
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Titan Helps Researchers Explore Explosive Star Scenarios
4 years ago

Titan Helps Researchers Explore Explosive Star Scenarios

By  •  4 years ago  •  Science

Using Titan, researchers at Stony Brook University completed a three-dimensional, high-resolution investigation of the thermonuclear burning a double-detonation white dwarf undergoes before explosion.
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Mastering Magnetic Reconnection
4 years ago

Mastering Magnetic Reconnection

By  •  4 years ago  •  Science

For 5 years a team led by William Daughton of Los Alamos National Laboratory has been simulating magnetic reconnection in space using the Cray XK7 Titan supercomputer and its predecessor, the Cray XT5 Jaguar supercomputer. The team’s simulations support the National Aeronautics and Space Administration’s Magnetospheric Multiscale Mission.
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Supernova Summer School Along the Road to Exascale
5 years ago

Supernova Summer School Along the Road to Exascale

By  •  5 years ago  •  People

Oak Ridge National Laboratory’s (ORNL’s) Bronson Messer shared his knowledge on this subject during the 2014 International Summer School on AstroComputing (ISSAC), held at the University of California’s High-Performance AstroComputing Center (UC-HiPACC) in San Diego, from July 21 to August 1.
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