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OLCF technology articles.

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
PeopleTechnology

OLCF and Tech Company Providentia Worldwide Build Intelligence System for Supercomputer Cooling Plant

The Oak Ridge Leadership Computing Facility (OLCF) and technology consulting company Providentia Worldwide LLC recently collaborated to develop an intelligence system that combines real-time updates from the IBM AC922 Summit supercomputer with local weather and operational data from its adjacent cooling plant, with the goal of optimizing Summit’s energy efficiency.…
Katie Elyce Jones
July 31, 2019
Titan supercomputer OLCFTechnology

Farewell, Titan

The Cray XK7 Titan supercomputer operated by the Oak Ridge Leadership Computing Facility (OLCF) at the US Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL) will be decommissioned on August 1 and disassembled for recycling. Performing up to 27 quadrillion calculations per second, Titan ranked as one of the…
Katie Elyce Jones
June 28, 2019
Technology

TechInt Develops New Solutions for Storage on Summit

The computational users running scientific codes on the Oak Ridge Leadership Computing Facility’s (OLCF’s) 200-petaflop IBM AC922 Summit supercomputer are generating more data than ever. To handle this data explosion, each Summit compute node is equipped with a solid-state storage device (SSD) that provides a fourfold speedup in the write…
Rachel McDowell
June 12, 2019
Technology

ORNL Adds Powerful AI Appliances to Computing Portfolio

(From left to right) Cole Freniere and Michael Reynolds of Microway, Alex Volkov of NVIDIA, and Chris Layton and Brian Zachary of ORNL pose with a newly arrived DGX-2. The NVIDIA appliances connect ORNL researchers with a platform that excels at machine learning, a type of artificial intelligence that could…
Jonathan Hines
February 6, 2019
Technology

Network Enhancement Strengthens Ties Between OLCF, ESnet

ESnet provides services to more than 40 DOE research sites, including the entire national laboratory system, its major scientific instruments, and its supercomputing facilities such as the OLCF. The network permits DOE-funded scientists to productively collaborate with partners around the world. If data is the lifeblood of a scientific computing…
Jonathan Hines
January 17, 2019
PeopleTechnology

Ready for Science: Summit Completes System Acceptance

A year-long acceptance process for the 200-petaflop, IBM AC922 Summit supercomputer at the US Department of Energy’s Oak Ridge National Laboratory (ORNL) is complete. Acceptance testing ensures that the supercomputer and its file system meet the functionality, performance, and stability requirements agreed upon by the facility and the vendor. To…
Katie Elyce Jones
December 20, 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
Technology

OLCF Welcomes Wombat Test System

Concocting the next big thing in high-performance computing (HPC) often starts with giving the latest thing a try. In that spirit, the Oak Ridge Leadership Computing Facility (OLCF) recently deployed Wombat, the center’s newest Arm-based test bed. The 16-node, single-rack computing cluster is the OLCF’s latest foray into Arm technology,…
Jonathan Hines
August 7, 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
Technology

Summit by the Numbers

Download the high-resolution file. The US Department of Energy’s Summit supercomputer located at Oak Ridge National Laboratory enables scientists to simulate complex physical systems and make predictions critical to advancing research and development. Summit’s “smart” architecture merges GPU acceleration and dense local memory to support expanding applications in data science…
Katie Elyce Jones
June 8, 2018
Technology

Genomics Code Exceeds Exaops on Summit Supercomputer

Researchers at the US Department of Energy’s Oak Ridge National Laboratory broke the exascale barrier, achieving a peak throughput of 1.88 exaops—faster than any previously reported science application—while analyzing genomic data on the recently launched Summit supercomputer. The ORNL team achieved the feat, the equivalent to carrying out nearly 2…
Jonathan Hines
June 8, 2018
ADIOS and BDE researchers have incorporated a new methodology into the integrated tool that allows users to compress and stream data in real time. The new approach leverages software-defining network capabilities, allowing users to control network resources rather than manually requesting to connect.Technology

ADIOS and BigData Express Offer New Data Streaming Capabilities

ADIOS and BDE researchers have incorporated a new methodology into the integrated tool that allows users to compress and stream data in real time. The new approach leverages software-defining network capabilities, allowing users to control network resources rather than manually requesting to connect. Projects large enough to run on high-performance…
Rachel McDowell
May 29, 2018
Technology

New Discoveries Within ‘SIGHT’

SIGHT visualization from a project led by University of Virginia’s Leonid Zhigilei to explore how lasers transform metal surface. At the home of America’s most powerful supercomputer, the Oak Ridge Leadership Computing Facility (OLCF), researchers often simulate millions or billions of dynamic atoms to study complex problems in science and…
Katie Elyce Jones
February 7, 2018
Technology

OLCF Launches New Website

The Oak Ridge Leadership Computing Facility’s (OLCF’s) website serves not only as the home for news on scientific discovery occurring at the supercomputing center but also as a gateway for system users to access information critical to the success of their projects. This month, the OLCF, a US Department of…
Josh Cunningham
February 7, 2018
Technology

Optimizing Miniapps for Better Portability

Minisweep performs a “sweep” computation across a grid (pictured)—representative of a 3D volume in space—to calculate the positions, energies, and flows of neutrons in a nuclear reactor. The yellow cube marks the beginning location of the sweep. The green cubes are dependent upon information from the yellow cube, the blue…
Rachel McDowell
January 17, 2018