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Read announcements for NREL’s high-performance computing (HPC) system users. 

HPC Interactive GPU MPI Changes

November 14, 2019

Changes have been made in terms of the way GPU nodes are requested for Interactive jobs. Please see the instructions on using the GPU's for interactive jobs on this link. Continue reading

Eagle Status

November 14, 2019

Over the summer we had a few issues with Lustre (/scratch, /projects, /shared-projects and /datasets.) A combination of a firmware and a hardware issue would cause one controller out of a dual set to fail, and then the second one would not take over. We applied a firmware fix during a previous system time.  During the October system time we replaced all the controllers.  We also resolved any remaining issues with Lustre and returned the targets (Lustre equivalent of disks) that had been made read only and had data migrated off them to service. We also added additional targets to the cluster.

We’ve been investigating issues with some MPI jobs at scale. Although Intel MPI generally functions well, we are currently working with multiple vendors to determine the underlying causes of the observed problems. Continue reading

Changes to hours_report

November 14, 2019

Please use Lex ( while connected to the NREL network directly or via VPN) to see detailed information about your projects' use.  

From the command-prompt, aus_report replaced hours_report.  The aus_report provides summary information about your projects and use. Detailed information is available via browser in Lex.

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Anaconda+Jupyter Walkthrough

November 14, 2019

Join us on December 3rd in RSF X320A&B-Beaver Creek for a practical-use walkthrough for the popular data science software platforms Anaconda and Jupyter (with notable focus on utilizing notebooks) on HPC systems. This is a collaboration between the HPC Operations and Applications teams to address common use-cases, pitfalls, and other tips for effective usage of these applications on HPC and in general.

If you have any suggestions or requests for content to be discussed, please reach out to Michael Bartlett.

Seats are limited.  Please RSVP to the presentation.

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Here's how to get help in the NREL HPC Environment

October 04, 2019

For HPC users seeking general guidance with interacting and utilizing the Eagle cluster resources the best resource will be navigating to the NREL HPC web page... Continue reading

Lex Resource Management System

October 04, 2019

NREL HPC Operations is happy to announce beta availability of the Lex resource management system. Lex is a web application designed to maintain allocation information, track utilization and control access. We look forward to sharing many more features and enhancements in the coming months. For more information on connecting to Lex, visit our website page on this new resource management system. Continue reading

Debug Queue Limit Changes

October 04, 2019

To enable multi-node debugging and testing, the debug partition limit is being increased to 2 nodes per user. The walltime limit will also be changed to 1 hour to permit greater overall access to the debug partition. Continue reading

Project Allocation FY transition: What you need to know.

October 04, 2019

HPC allocation leads will need to be aware of the transition from a FY19 allocation to a FY20 allocation status. Generally if you allocation is a continuing allocation from FY19 to FY20 the project handle will remain the same unless otherwise requested. There are three project states; active, expired and ended. The following are general instructions for each state. Please be advised that project leads will be responsible for their data preservation after set periods of time upon an allocation cessation... Continue reading

Changing Quarterly Allocation Distribution, Requesting Increases, and Allocation Reductions

October 04, 2019

We received some feedback in our HPC Annual User Survey indicating some frustration with Use or Lose Policy for quarterly allocations as well as getting larger allocations mid-year.  Here is some information you may find helpful... Continue reading

Quarterly System Times / 1st Tuesday Patch

September 11, 2019

Full system times will now be quarterly. We may need to patch some individual systems more frequently. Those patches will be the first Tuesday of the month and announced in advanced. Continue reading