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OLCF Offers New Workload Capabilities with Slate Service

The large scientific simulations users at the Oak Ridge Leadership Computing Facility (OLCF) run on the center’s IBM AC922 Summit supercomputer almost always require other attendant tasks to fully realize their scientific impact. Resources for these additional “workflow” tasks can be scarce, and pushing this work to the login or…
Rachel McDowell
March 27, 2020
Technology

New Job Step Viewer Tool Captures Job Launching on Summit

Before computational users launch large scientific jobs on the Oak Ridge Leadership Computing Facility’s (OLCF’s) IBM AC922 Summit supercomputer, they need to understand how they will use the full power of the machine’s hybrid nodes, including memory layout, CPU, and GPU usage. Now, they have a way to see this…
Rachel McDowell
March 27, 2020
Science

ORNL Scientists Tap into AI to Put a New Spin on Neutron Experiments

Scientists seek to use quantum materials—those that have correlated order at the subatomic level—for electronic devices, quantum computers, and superconductors. Quantum materials owe many of their properties to the physics that is occurring on the smallest scales, physics that is fully quantum mechanical. Some materials, such as complex magnetic materials,…
Rachel McDowell
March 27, 2020
Science

Rethinking a Century of Fluid Flows

In 1922, English meteorologist Lewis Fry Richardson published Weather Prediction by Numerical Analysis. This influential work included a few pages devoted to a phenomenological model that described the way that multiple fluids (gases and liquids) flow through a porous-medium system and how the model could be used in weather prediction.…
Will Wells
March 5, 2020
OLCF metrics data flowTechnology

OLCF Supercharges Supercomputer Analytics with Apache Kafka

The high-performance computing (HPC) systems at the US Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL) are about to vault into the “pubsub” era of real-time streaming analytics. Employing the open-source Apache Kafka event-streaming platform, ORNL’s HPC Core Operations (Ops) Group has built a whole new publish/subscribe system for…
Coury Turczyn
December 16, 2019
Science

United States Continues To Lead World In Supercomputing

WASHINGTON, D.C. – Today, the world’s TOP500 Supercomputers were unveiled, and once again asserted U.S. supremacy in supercomputing. The Summit machine at DOE’s Oak Ridge National Laboratory again ranked first in the world, and Lawrence Livermore National Laboratory’s Sierra machine ranked second. In total, four of the ten fastest computers belong…
Katie Bethea
November 18, 2019
Science

Can a UNICORN Outrun Earthquakes?

Each year, anywhere from a few hundred to tens of thousands of deaths are attributed to the catastrophic effects of major earthquakes. Apart from ground shaking, earthquake hazards include landslides, dam ruptures, flooding, and worse—if the sea floor is suddenly displaced during an earthquake, it can trigger a deadly tsunami.…
Rachel McDowell
November 13, 2019
Science

AI for Plant Breeding in an Ever-Changing Climate

How might artificial intelligence (AI) impact agriculture, the food industry, and the field of bioengineering? Dan Jacobson, a research and development staff member in the Biosciences Division at the US Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL), has a few ideas. For the past 5 years, Jacobson and…
Rachel McDowell
November 13, 2019
Science

A New Parallel Strategy for Tackling Turbulence on Summit

Turbulence, the state of disorderly fluid motion, is a scientific puzzle of great complexity. Turbulence permeates many applications in science and engineering, including combustion, pollutant transport, weather forecasting, astrophysics, and more. One of the challenges facing scientists who simulate turbulence lies in the wide range of scales they must capture…
OLCF Staff Writer
November 13, 2019
U-Plant at Hanford Site Credit: US Department of EnergyScience

Deep Learning Expands Study of Nuclear Waste Remediation

Contact: Kathy Kincade, [email protected], +1 510 495 2124 A research collaboration between Lawrence Berkeley National Laboratory (Berkeley Lab), Pacific Northwest National Laboratory (PNNL), Brown University, and NVIDIA has achieved exaflop performance on the Summit supercomputer with a deep learning application used to model subsurface flow in the study of nuclear waste remediation.…
Katie Bethea
November 8, 2019
SULI student Jess Woods and mentor Oscar HernandezPeople

SULI Profile: Jess Woods

When Jess Woods enrolled at the University of North Carolina at Chapel Hill (UNC), he was sure he’d pursue a degree in studio art. He loved oil painting, and it seemed like the right career path. Then he took a math class. Now, 4 years later and armed with a…
Coury Turczyn
October 28, 2019