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About Rachel McDowell

Rachel McDowell is a science writer for the Oak Ridge Leadership Computing Facility.
Latest Posts | By Rachel McDowell
Meet Gina Tourassi, Director of the National Center for Computational Sciences
1 week ago

Meet Gina Tourassi, Director of the National Center for Computational Sciences

By  •  1 week ago  •  Featured, People

This is a continuing profile series on the directors of the Department of Energy (DOE) Office of Science User Facilities. These scientists lead a variety of research institutions that provide …
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Team Earns Gordon Bell Prize Finalist Nomination for Simulating Carbon at Extreme Pressures and Temperatures
2 weeks ago

Team Earns Gordon Bell Prize Finalist Nomination for Simulating Carbon at Extreme Pressures and Temperatures

By  •  2 weeks ago  •  Featured, Science

Are diamonds even stronger than we’ve ever imagined? Can other post-diamond phases appear when diamond is subjected to extreme pressures? A team used machine-learned descriptions of interatomic interactions on the …
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We Know #COVIDisAirborne—Now We Have the First Ever Model of an Aerosolized Viral Particle
2 weeks ago

We Know #COVIDisAirborne—Now We Have the First Ever Model of an Aerosolized Viral Particle

By  •  2 weeks ago  •  Featured, Science

A team led by Rommie Amaro of the University of California, San Diego (UC San Diego), has used the Summit supercomputer at the US Department of Energy’s (DOE’s) Oak Ridge …
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Team Publishes Massive Dataset Unravelling Details of the Expanding Universe
1 month ago

Team Publishes Massive Dataset Unravelling Details of the Expanding Universe

By  •  1 month ago  •  Featured, Technology

A team led by researchers at the Flatiron Institute and the Center for Astrophysics | Harvard & Smithsonian has published the largest amount of data for a publication to date …
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Pioneering Frontier: Meeting Industry at Scale
2 months ago

Pioneering Frontier: Meeting Industry at Scale

By  •  2 months ago  •  Featured, People

The “Pioneering Frontier” series features stories profiling the many talented ORNL employees behind the construction and operation of the OLCF’s incoming exascale supercomputer, Frontier. The HPE Cray system is scheduled …
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OLCF Organizes First Hackathon on Slate Service
2 months ago

OLCF Organizes First Hackathon on Slate Service

By  •  2 months ago  •  People

The Oak Ridge Leadership Computing Facility (OLCF) hosted its first ever Slate hackathon for users of the OLCF’s Slate platform, a resource that provides container orchestration services and gives users …
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Stunning Specs: What’s inside the Nation’s First Exascale Supercomputer Facility?
2 months ago

Stunning Specs: What’s inside the Nation’s First Exascale Supercomputer Facility?

By  •  2 months ago  •  Technology

Preparing for the nation’s first exascale system, the upcoming HPE Cray EX Frontier system at the US Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL), has been a colossal …
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Reaching Remarkable States of Matter with Laser Simulations
3 months ago

Reaching Remarkable States of Matter with Laser Simulations

By  •  3 months ago  •  Featured, Science

With the help of supercomputers, scientists are getting a better idea of how to study some of the strongest electromagnetic fields in the universe.

Scientists aim to use high-power lasers …
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OLCF’s Advanced Technologies Section Hosts Seminar Series
3 months ago

OLCF’s Advanced Technologies Section Hosts Seminar Series

By  •  3 months ago  •  People

The Oak Ridge Leadership Computing Facility’s (OLCF’s) Advanced Technologies Section (ATS) is hosting a series of seminars on topics relevant to its section groups and beyond. On the second and fourth …
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Shape-Based Model Sheds Light on Simplified Protein Binding
4 months ago

Shape-Based Model Sheds Light on Simplified Protein Binding

By  •  4 months ago  •  Featured, Science

Can something as simple as shape fully determine whether or not proteins will bind together? Scientists are commissioning supercomputers to find out.

A team led by Sharon Glotzer, distinguished professor …
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GE Spins up Supercomputer Models to Zero in on Energy Loss in Turbines
6 months ago

GE Spins up Supercomputer Models to Zero in on Energy Loss in Turbines

By  •  6 months ago  •  Events, Featured, Industry

High-pressure turbines are complex pieces of engineering and vital components of gas turbines used to propel jet engines. The more efficient these jet engines are, the better the outcomes for …
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Physicists Crack the Code to Signature Superconductor Kink Using Supercomputing
7 months ago

Physicists Crack the Code to Signature Superconductor Kink Using Supercomputing

By  •  7 months ago  •  Featured, Science

Scientists have long been trying to understand the behavior of superconductors, materials that have zero electrical resistance when they reach sufficiently low temperatures. Superconductors might be useful for technologies such …
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Scientists Tap Supercomputing to Study Exotic Matter in Stars
7 months ago

Scientists Tap Supercomputing to Study Exotic Matter in Stars

By  •  7 months 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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Virtual Workshop on HPCToolkit Profiler Gives Computational Codes a Boost
7 months ago

Virtual Workshop on HPCToolkit Profiler Gives Computational Codes a Boost

By  •  7 months ago  •  People

When users of the US Department of Energy’s (DOE’s) supercomputers want to improve their scientific codes, they employ tools called profilers that determine which pieces of their codes are lacking …
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Pioneering Frontier: Staying on Track
7 months ago

Pioneering Frontier: Staying on Track

By  •  7 months ago  •  Featured, People

The “Pioneering Frontier” series features stories profiling the many talented ORNL employees behind the construction and operation of the OLCF’s incoming exascale supercomputer, Frontier. The HPE Cray system is scheduled …
Read More

Computer Simulations Shed Light on Nanomaterial Structures
7 months ago

Computer Simulations Shed Light on Nanomaterial Structures

By  •  7 months ago  •  Featured, Science

2D nanomaterials, with a thickness of a single layer of atoms, have unique electrical and optical properties that make them good candidates for use in electronics and optical sensors. An …
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