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Exascale Blastoff

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 record for computational power when the HPE Cray EX supercomputer at the Department of Energy’s Oak Ridge National Laboratory debuted…
Matt Lakin
June 28, 2023
ScienceTechnology

Exascale Acceleration

Just how fast can the world’s fastest supercomputer go? Maybe even faster than imagined. Researchers studying plasma physics for particle accelerators recently used the Oak Ridge Leadership Computing Facility’s Frontier supercomputer to achieve a speedup by as much as eightfold in their code’s performance – more than double the improvement…
Matt Lakin
November 18, 2022
Frontier data center imageScience

Forging Ahead with Frontier: Ready to Crush 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. Frontier, an HPE Cray EX supercomputer capable of 1018 calculations per second—or 10 with 18 zeroes—was installed in late 2021 and is…
Rachel McDowell
March 28, 2022
Science

University of Delaware Team Tightens up Code for Exascale Computing on Frontier

This article was originally written by Tracey Bryant, Senior Director for Research Communications at the University of Delaware. University of Delaware professor Sunita Chandrasekaran is leading an international team designing an application for the Frontier exascale supercomputer, now being built at Oak Ridge National Laboratory. Image Credit: Sunita Chandrasekaran, University of Delaware…
Rachel McDowell
January 12, 2021
Technology

Simulating the Stars at Exascale Requires HIP Solutions

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 been re-engineered for GPUs must continually adapt them for new architectures. Evan Schneider of Princeton University, though, began developing her…
Rachel McDowell
March 5, 2020
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
Group photo of workshop attendeesPeopleScience

Previewing the New Frontier of High-Performance Computing

In the main banquet room of Knoxville, Tennessee’s downtown Hilton Hotel, more than 150 scientists from around the world got their first peek at the exascale computing power that will become available for their research projects in two short years. The US Department of Energy’s (DOE’s) Oak Ridge Leadership Computing…
Coury Turczyn
October 28, 2019
Science

CAAR Partnerships for Frontier Announced

In preparation for the Frontier supercomputer, the US Department of Energy’s (DOE’s) Oak Ridge Leadership Computing Facility (OLCF) has selected eight research projects to participate in its Center for Accelerated Application Readiness (CAAR) program. Through CAAR, the OLCF will partner with application core developers, vendor partners, and OLCF staff members…
Will Wells
September 4, 2019
Science

CAAR Accepting Application Team Proposals for Frontier System

As details about the Frontier supercomputer emerge, the US Department of Energy’s (DOE’s) Oak Ridge Leadership Computing Facility (OLCF) is seeking partnerships with select applications teams to develop scientific applications for highly effective use on the Frontier system. Through its Center for Accelerated Application Readiness (CAAR), the OLCF will partner…
Jonathan Hines
May 7, 2019
People

OLCF Scientist Talks Early Summit Results at APS Meeting

The American Physical Society's "Quarks to the Cosmos" meeting took place April 13–16 in Denver. 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 Denver, detailing his current work…
Rachel McDowell
April 25, 2019
Science

Summit Early Science Program Starting Soon

The OLCF has now completed acceptance testing on the new Summit supercomputer and will begin ramping up the Summit Early Science Program over the next few weeks.  Most immediately we have provided the Center for Accelerated Application Readiness (CAAR) teams access to Summit to complete work needed to satisfy key…
Katie Bethea
November 29, 2018
The 2018 OLCF User Meeting was attended by 117 users and staff members. The annual event allows users to share their experiences with the OLCF’s resources and gives them an opportunity to learn about new tools and services.People

OLCF Hosts 14th Annual User Meeting amid Summit Buzz

The OLCF introduced plans for its future exascale system, Frontier, at the 2018 OLCF User Meeting. Last week 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), held its annual user meeting—an event…
Rachel McDowell
May 29, 2018
People

Annual User Meeting Spotlights Titan, Summit, and Deep Learning

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 supercomputer, and delve into deep learning concepts. The event, held May 23–25 at the US Department of Energy’s (DOE’s) Oak…
Rachel McDowell
June 27, 2017
Technology

Ascending to Summit: Announcing Summitdev

Since having partnered with IBM, NVIDIA, and Mellanox in 2014, the US Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL) has been forging the path to its next big supercomputer, Summit, which will feature an IBM POWER9 architecture and NVIDIA Volta GPUs. Scheduled to enter full production in 2019, Summit will allow researchers to dive…
Rachel McDowell
February 28, 2017
Tjerk StraatsmaScience

Straatsma Named AAAS Fellow in Chemistry

OLCF Scientific Computing Group leader Tjerk Straatsma was recently elected a AAAS fellow in chemistry. Straatsma will be inducted in February at the AAAS Annual Meeting in Boston. At its core, the aim of science is to explain and understand. Each year, the world’s largest multidisciplinary scientific society, the American…
Jonathan Hines
January 31, 2017
Technology

CAAR Team Members Test Compilers for Summit at IBM Hackathon

Former OLCF Postdoctoral Researcher and current NVIDIA Solutions Architect Tom Papatheodore (left) and OLCF Tools Developer Oscar Hernandez (right) attended an IBM hackathon for OpenMP 4.5 with Lixiang Luo (center), an IBM research staff member at the IBM/NVIDIA Center of Excellence at ORNL, to test compilers for Summit, the OLCF’s…
Rachel McDowell
December 7, 2016
Science

Physics Researchers Question Calcium 52’s Magic

The image above shows the chain of the studied calcium isotopes. The “doubly magic” isotopes with mass numbers 40 (Ca-40) and 48 (Ca-48) exhibit equal charge radii. The first measurement of the charge radius in Ca-52 yielded an unexpectedly large result. For decades nuclear physicists have tried to learn more…
Eric Gedenk
July 20, 2016