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Did You Know?

Center Announcements
  – 2021 OLCF User Survey
  – OpenCE 1.4.0 is Available

Meetings & Workshops
  – CUDA Graphs Webinar (Oct 13)
  – HPC Best Practices Webinar (Oct 13)
  – Deep Learning at Scale (Oct 28)

Upcoming Scheduled Outages
  – None through Oct 15

Did You Know?

The $LMOD_SYSTEM_NAME environment variable can be used to determine the system name on all systems using Lmod. This might be helpful in dot files, build scripts, etc.

Center Announcements

2021 OLCF User Survey
The annual OLCF User Survey is now open. The survey is conducted on behalf of the OLCF by Oak Ridge Associated Universities (ORAU) and should take approximately 10 minutes to complete. We truly value your feedback and encourage all users to complete this important survey to help us know how to better serve our user community. The survey closes on November 15, 2021.

To take the survey, please visit

OpenCE 1.4.0 is Available
The Open Cognitive Environment (Open CE) version 1.4.0 is now available on Summit via the “open-ce” modulefiles. The environment is available for python versions 3.7, 3.8, and 3.9. For more details about packages provided via Open CE 1.4.0 please see

Meetings & Workshops

CUDA Graphs Webinar (Oct 13)
NVIDIA will present “CUDA Graphs” on Wednesday, October 13 from 1 PM to 3 PM (Eastern Time). This event is a continuation of the CUDA Training Series ( and will be presented by Matt Stack from NVIDIA. This presentation will demonstrate how to use CUDA Graphs in an application and discuss in what circumstances an application speedup may be obtained using them, followed by hands-on exercises. For more information or to register, visit

HPC Best Practices Webinar (Oct 13)
The IDEAS Productivity project, in partnership with the DOE Computing Facilities of the ALCF, OLCF, and NERSC and the DOE Exascale Computing Project (ECP) run a webinar series on Best Practices for HPC Software Developers. The October webinar will be presented by David Richards of LLNL and is titled Migrating to Heterogeneous Computing: Lessons Learned in the Sierra and El Capital Centers of Excellence. The webinar will take place on Wednesday, October 13, 2021 at 1:00 pm ET. The webinar is free and open to the public, but registration is required and is available at

Deep Learning at Scale (Oct 28)
OLCF will present Deep Learning at Scale from 1:00 PM to 5:00 PM (Eastern Time) on Thursday, October 28. In this tutorial, an overview of deep learning communication libraries will be given. Discussions will cover the practice and performance of distributed deep learning on Summit. A hands-on session will cover examples of parallelizing serial training codes, and profiling and optimizing the performance. Participants must have an account on Summit to participate in the hands-on part of the tutorial. For more information or to register, please visit

Upcoming Scheduled Outages

  • HPSS will be unavailable from 8:00 AM until 8:00 PM on Tuesday, October 19.
  • Home will be unavailable briefly between 4:30 PM and 5:30 PM on Wednesday, October 20.