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Summit

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Teaching and Learning

Tom Papatheodore, an OLCF high-performance computing engineer and member of the User Assistance and Outreach Group, connects users to the resources and training materials they need to do cutting-edge computational science. “A big part of the reason I enjoy my job is because I get to be a part of…
Jonathan Hines
December 3, 2018
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
Science

Two DOE Supercomputers Top List of World’s Fastest

WASHINGTON, D.C. – Two U.S. Department of Energy (DOE) national laboratories are now home to the fastest supercomputers in the world, according to the new TOP500 List, a semiannual ranking of the world’s fastest computing systems. The IBM Summit system at Oak Ridge National Laboratory is currently ranked number one,…
Katie Bethea
November 13, 2018
People

Augmented Reality Technology Shows Promise for Summit Surveillance

Researchers are taking 3D holograms beyond science fiction theatrics with recent advances in augmented reality (AR) techniques. During their summer internships at the US Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL), Cooper Colglazier and Jesse Vomfell investigated how AR could be effectively applied to study various aspects of…
Elizabeth Rosenthal
November 5, 2018
OLCF staff members attended EuroMP, OpenMPCon, IWOMP 2018, and more at the Barcelona Supercomputing Center.People

OLCF Staff Participate in Merged Conferences for New Perspectives

OLCF staff members attended EuroMP, OpenMPCon, IWOMP 2018, and more at the Barcelona Supercomputing Center. Image Credit: Rachel McDowell, ORNL Last month staff at the Oak Ridge Leadership Computing Facility (OLCF) attended a group of events colocated in Barcelona, Spain, at the Barcelona Supercomputing Center (BSC) to advance the development…
Rachel McDowell
November 5, 2018
Science

Microscopy Images Put Deep Learning Code to the Test

ORNL research scientists Steven Young (left) and Travis Johnston (middle) with ORNL data scientist Robert Patton (right). A team led by Patton is in the running for the 2018 ACM Gordon Bell Prize after it used the MENNDL code and the Summit supercomputer to create an artificial neural network that…
Rachel McDowell
October 23, 2018
Science

Computing Genes to Support Living Clean

ORNL computational systems biologist Dan Jacobson, left, and OLCF computational scientist Wayne Joubert are part of a team that was named a finalist for the 2018 Gordon Bell Prize for its work to advance genomic science on the Summit supercomputer. This article is part of a series covering the finalists…
Jonathan Hines
October 15, 2018
People

Annual OpenACC Meeting Promotes Programming Innovation

Every year, the OpenACC annual meeting brings together representatives from national laboratories, universities, and other research institutions to exchange information and expand the programming model’s uses in various science domains. A directive-based and performance-portable parallel programming model designed to program many types of accelerators, OpenACC is compatible with the C,…
Elizabeth Rosenthal
October 9, 2018
People

Simple Summit

Cade Brown and Thomas Hill, high school seniors from L&N Stem Academy in Knoxville, spent the summer of 2018 at Oak Ridge National Laboratory developing a small-scale demonstration unit of the Summit supercomputer called Simple Summit. Two high school seniors from L&N STEM Academy in Knoxville spent the summer of…
Katie Bethea
October 9, 2018
People

Mixed Precision: A Strategy for New Science Opportunities

OLCF computational scientist Wayne Joubert successfully exploited the Summit supercomputer’s low-precision capabilities to accelerate a genomics application to exascale speeds. Since the days of vector supercomputers, computational scientists have relied on high-precision arithmetic to accurately solve a wide range of problems, from modeling nuclear reactors to predicting supernova physics to…
Jonathan Hines
October 9, 2018
Technology

Summit Speeds Calculations in the Search for Exotic Particles

In pursuit of numerical predictions for exotic particles, researchers are simulating atom-building quark and gluon particles over 70 times faster on Summit, the world’s most powerful scientific supercomputer, than on its predecessor Titan at the US Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL). The interactions of quarks and…
Katie Elyce Jones
September 17, 2018
People

Faces of Summit: Getting Acclimated

Ashleigh Barnes simulates metal–organic frameworks (MOFs) using the LSDalton chemistry code. Pictured left, a visualization of a magnesium-based MOF made up of magnesium ions (green) and organic linkers consisting of carbon (tan), oxygen (orange), and hydrogen (white) atoms. A carbon dioxide molecule (floating tan and orange molecule) has been adsorbed…
Rachel McDowell
September 17, 2018
Summit supercomputerScience

Uncharted Territory

Ambitious supercomputers attract ambitious users. After debuting as the world’s fastest supercomputer in June, the Oak Ridge Leadership Computing Facility’s (OLCF’s) 200-petaflop Summit is already demonstrating its utility for solving complex computational challenges with unprecedented speed. A recent announcement by the Association for Computing Machinery lists five Summit users among…
Jonathan Hines
September 17, 2018
People

Faces of Summit: Creating a Green Summit

Jim Rogers, computing and facilities director at the OLCF, has spent the last 30 years in the computing field. Over the course of his career, Rogers has taken part in a computing revolution, with systems increasing 1-million fold over the last three decades. The Faces of Summit series shares stories…
Rachel McDowell
August 29, 2018
People

OLCF Readies Users for Summit

Now that the Oak Ridge Leadership Computing Facility (OLCF) has launched its IBM AC922 Summit supercomputer, staff members in the OLCF’s User Assistance and Outreach (UAO) Group are planning robust training events intended to enhance user experiences on the new system. Unlike the OLCF’s current Cray XK7 Titan supercomputer, which…
Rachel McDowell
June 26, 2018
Technology

ORNL’s Summit Supercomputer Named World’s Fastest

OAK RIDGE, Tenn.  – The US Department of Energy’s Oak Ridge National Laboratory is once again officially home to the fastest supercomputer in the world, according to the TOP500 List, a semiannual ranking of the world’s fastest computing systems. The recently launched Summit supercomputer was announced as No. 1 today…
Jonathan Hines
June 25, 2018