OLCF-Developed Tool Offers a Window into Center Operations

Technology

OLCF-Developed Tool Offers a Window into Center Operations

Optimizing compute jobs based on these separate and combined streams of information, however, can be challenging. Fortunately for staff and users at the OLCF, a new tool called the Grand Unified Information Directory for the OLCF (GUIDO) has been developed to enhance existing capabilities.

Miki NolinMarch 8, 2016

Technology

OLCF Training Video Channel Now Open

User support specialists recent made a new training video channel for current and prospective users to access training materials at any time.

Miki NolinFebruary 16, 2016

Technology

On the Road to Summit: More Power

Facility enhancements to accommodate Summit, the OLCF’s next leadership-class supercomputer, continue to proceed on schedule.

Jonathan HinesJanuary 26, 2016

Technology

OLCF Team Works to Facilitate Data Transfer

Recently, a cross-departmental team engaged in an ongoing process to make data transfer easier for OLCF users.

Jeff GaryJanuary 26, 2016

Technology

OLCF Delivers New Optimized Job Launching Tool

The OLCF developed Wraprun, an optimized job launching tool, to assist users of Titan that wish to run ensemble jobs.

Miki NolinJanuary 5, 2016

Technology

Finding New Ways to Optimize Old Codes

A team led by OLCF's Christos Kartsaklis has built a tool to help users to extract enough parallelism from their existing programs to take advantage of additional computational power.

Miki NolinJanuary 5, 2016

Technology

2015 Hackathons Round Out in Knoxville

The Oak Ridge Leadership Computing Facility hosted its GPU hackathon October 19–23 at the Marriott hotel in downtown Knoxville.

Jeremy RumseyDecember 8, 2015

Technology

Warmer Water to Cool Future OLCF Supercomputers

A move from cold- to warm-water cooling is projected to lower the OLCF’s cooling costs by more than half, saving nearly a million dollars per year in total operating costs.

Jonathan HinesNovember 10, 2015

Technology

ORNL Researchers Hail Promise of Data-Driven Materials Discovery and Design

An article, published in the October 2015 issue of Nature Materials, provides an overview of recent advances in experimental imaging, data analytics, and high-performance computing that are enabling new opportunities for discovery and design of advanced materials.

Jonathan HinesNovember 10, 2015

Technology

Moab Scheduling Tweak Tightens Titan’s Workload

To reduce fragmentation of large scientific workloads on America’s fastest supercomputer, staff at the OLCF is fine-tuning how jobs are scheduled on Titan.

Jonathan HinesOctober 13, 2015

Technology

Retrofitting Rhea

Prompted by the annual user survey, OLCF’s Rhea received an upgrade this fall. In two phases, OLCF staff doubled Rhea’s amount of RAM per node and added GPU nodes.

Miki NolinOctober 13, 2015

Technology

On the Road to Summit

Following the Summit announcement, OLCF staff have been making infrastructure changes to accommodate Summit. The OLCF has already hit several major milestones on the way to building Summit.

Eric GedenkSeptember 29, 2015

Technology

Tiny Titan on Stage at DOE National Science Bowl

Tiny Titan was featured prominently this spring at the US Department of Energy National Science Bowl at the National 4-H Conference Center in Chevy Chase, Maryland.

Jeff GarySeptember 9, 2015

Technology

New DDNTool Streamlines OLCF File System Monitoring

By importing DDNTool’s data onto Splunk, a commercial software package for data mining, OLCF staff can quickly identify possible performance issues with users’ codes. Upgrades allow staff to monitor hardware failures and performance data in real-time Staff members at the US Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL)…

Eric GedenkSeptember 9, 2015

Technology

Banishing Bad Cache Behavior

For OLCF users, managing cache behavior has gotten a little easier thanks to the newly developed tool GLprof.

Jeremy RumseyJuly 29, 2015

Technology

OLCF Upgrades System to CUDA 6.5

The OLCF's recent CUDA upgrade fosters unified memory function that improves memory management between the CPUs and GPUs and also provides the benefit of globally shared data. The upgrade is a true win–win for the OLCF and its users.

Jeff GaryJuly 29, 2015

Technology

Science DMZ Set to Expedite Data In and Out of ORNL

Researchers at the OLCF are working to speed up the process of data transfer using a new tool.

Eric GedenkJuly 7, 2015

Technology

Tiny Titan Is Now Accepting Visitors

Tiny Titan, the portable parallel computer designed for students and the general public by staff at the OLCF, is the subject of a new exhibit at the American Museum of Science and Energy (AMSE) in Oak Ridge, Tennessee.

Katie Elyce JonesJune 16, 2015

Technology

OLCF Shares Lustre Knowledge at International Workshop

The OLCF played a significant role in an ORNL event to share knowledge and discuss the future development of the parallel file system, Lustre.

OLCF Staff WriterMay 21, 2015

Technology

Storage System Infrastructure Upgrades Improve Performance, Data Security

OLCF staff have invested heavily in making sure users can access data quickly while also taking steps to keep data safe.

Eric GedenkMay 5, 2015

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