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Technology

OLCF Delivers New Optimized Job Launching Tool
2 years ago

OLCF Delivers New Optimized Job Launching Tool

By  •  2 years ago  •  Technology

The OLCF developed Wraprun, an optimized job launching tool, to assist users of Titan that wish to run ensemble jobs.
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Finding New Ways to Optimize Old Codes
2 years ago

Finding New Ways to Optimize Old Codes

By  •  2 years ago  •  Technology

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.
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2015 Hackathons Round Out in Knoxville
2 years ago

2015 Hackathons Round Out in Knoxville

By  •  2 years ago  •  Technology

The Oak Ridge Leadership Computing Facility hosted its GPU hackathon October 19–23 at the Marriott hotel in downtown Knoxville.
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Warmer Water to Cool Future OLCF Supercomputers
3 years ago

Warmer Water to Cool Future OLCF Supercomputers

By  •  3 years ago  •  Technology

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.
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ORNL Researchers Hail Promise of Data-Driven Materials Discovery and Design
3 years ago

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

By  •  3 years ago  •  Technology

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.
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Moab Scheduling Tweak Tightens Titan’s Workload
3 years ago

Moab Scheduling Tweak Tightens Titan’s Workload

By  •  3 years ago  •  Technology

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.
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Retrofitting Rhea
3 years ago

Retrofitting Rhea

By  •  3 years ago  •  Technology

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.
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On the Road to Summit
3 years ago

On the Road to Summit

By  •  3 years ago  •  Technology

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.
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Tiny Titan on Stage at DOE National Science Bowl
3 years ago

Tiny Titan on Stage at DOE National Science Bowl

By  •  3 years ago  •  Technology

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.
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New DDNTool Streamlines OLCF File System Monitoring
3 years ago

New DDNTool Streamlines OLCF File System Monitoring

By  •  3 years ago  •  Technology

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) are constantly trying to …
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Banishing Bad Cache Behavior
3 years ago

Banishing Bad Cache Behavior

By  •  3 years ago  •  Technology

For OLCF users, managing cache behavior has gotten a little easier thanks to the newly developed tool GLprof.
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OLCF Upgrades System to CUDA 6.5
3 years ago

OLCF Upgrades System to CUDA 6.5

By  •  3 years ago  •  Technology

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.
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