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About Rachel Harken

Rachel Harken is a science writer for the Oak Ridge Leadership Computing Facility.
Latest Posts | By Rachel Harken
Zeroing in on Text Understanding for Automated Cancer Report Classification
4 weeks ago

Zeroing in on Text Understanding for Automated Cancer Report Classification

By  •  4 weeks ago  •  Featured, Science

In 2012 approximately 14 million new cases of cancer were reported worldwide, and the National Cancer Institute (NCI) predicts that number will rise to 22 million by 2032. With each …
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Faces of Summit: Serving up Software
4 weeks ago

Faces of Summit: Serving up Software

By  •  4 weeks ago  •  People

The Faces of Summit series shares stories of people working to stand up America’s next top supercomputer for open science, the Oak Ridge Leadership Computing Facility’s Summit. The next-generation machine …
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A Novel Method for Comparing Plant Genes
2 months ago

A Novel Method for Comparing Plant Genes

By  •  2 months ago  •  Featured, Science

During normal photosynthesis, plants capture sunlight and carry out respiration during the day, taking in carbon dioxide that will be used to form carbohydrates. But a small percentage of plant …
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Optimizing Miniapps for Better Portability
3 months ago

Optimizing Miniapps for Better Portability

By  •  3 months ago  •  Technology

When scientists run their scientific applications on massive supercomputers, the last thing they want to worry about is optimizing their codes for new architectures. Computer scientist Sunita Chandrasekaran at the …
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Faces of Summit: Putting the System to the Test
3 months ago

Faces of Summit: Putting the System to the Test

By  •  3 months ago  •  People

The Faces of Summit series shares stories of people working to stand up America’s next top supercomputer for open science, the Oak Ridge Leadership Computing Facility’s Summit. The next-generation machine …
Read More

New Boeing Method Accelerates Turbulence Modeling Uncertainty Analysis
4 months ago

New Boeing Method Accelerates Turbulence Modeling Uncertainty Analysis

By  •  4 months ago  •  Featured, Science

Boeing has long used computational tools as part of its aircraft design process, but now engineers at the world’s largest aerospace company are increasingly shifting their focus from traditional subscale …
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Teams Gear up for Summit at Fourth Annual GPU Hackathon
5 months ago

Teams Gear up for Summit at Fourth Annual GPU Hackathon

By  •  5 months ago  •  People

At the Oak Ridge Leadership Computing Facility’s (OLCF’s) fourth annual GPU Hackathon, event programmers again successfully adapted their applications for GPU architectures. The 5-day event at the Hilton in Knoxville, Tennessee, …
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Decades-Long Physics Mystery Elucidated with Titan
6 months ago

Decades-Long Physics Mystery Elucidated with Titan

By  •  6 months ago  •  Science

The same fusion reactions that power the sun also occur inside a tokamak, a device that uses magnetic fields to confine and control plasmas of 100-plus million degrees. Under extreme …
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OLCF Hosts CUDA Workshop for GPU Programming
9 months ago

OLCF Hosts CUDA Workshop for GPU Programming

By  •  9 months ago  •  People

The 18,688 NVIDIA Tesla GPU accelerators in Titan, the Oak Ridge Leadership Computing Facility’s (OLCF’s) flagship supercomputer, can greatly boost code performance. Researchers interested in using Titan, which is capable …
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3-D Models Help Scientists Gauge Flood Impact
9 months ago

3-D Models Help Scientists Gauge Flood Impact

By  •  9 months ago  •  Science

Heavy rainfall can cause rivers and drainage systems to overflow or dams to break, leading to flood events that bring damage to property and road systems as well potential loss …
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OLCF Staff Reach Students through Coding Events
9 months ago

OLCF Staff Reach Students through Coding Events

By  •  9 months ago  •  People

The Oak Ridge Leadership Computing Facility (OLCF), a US Department of Energy (DOE) Office of Science User Facility located at DOE’s Oak Ridge National Laboratory (ORNL), recently participated in two …
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Annual User Meeting Spotlights Titan, Summit, and Deep Learning
10 months ago

Annual User Meeting Spotlights Titan, Summit, and Deep Learning

By  •  10 months ago  •  People

One hundred twenty-three Oak Ridge Leadership Computing Facility (OLCF) users and staff members attended the annual OLCF User Meeting in May to share achievements on Titan, discuss the next big Summit …
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