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

October System Time

September 11, 2019

Eagle will take an extended system time the first week of October from October 1st through October 4th. During this system time we will improve redundancy of the parallel file system as well as other improvements to the software environment. 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

Allocation Cycle

September 11, 2019

The FY19 HPC allocation cycle will end this month on September 30, 2019. Those projects that do not expect to receive an allocation for FY20 should be making arrangements to remove their project-specific data from Eagle filesystems by 12/30/2019. We are currently awaiting results from the decision authorities in charge of assigning AUs from the EERE and NREL pools, and hope to send out award memos later this month.

The FY20 HPC allocation cycle will begin on October 7, 2019. This later than usual start is simply to accommodate the scheduled system time, which is slightly longer than normal in order to integrate new hardware into Eagle. Continue reading

System Times Going Forward

August 21, 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. The next full system time will be in October. Continue reading


August 21, 2019

FastX is a Graphical User Interface application that is designed to provide automatic X forwarding capabilities to the Eagle DAV nodes, specifically useful for working remotely. If you are remote this will allow you to run sessions that you can reconnect to without disrupting your work as it progresses. We do, however, request that you terminate your FastX session when not in use in order to free up license usage for other users. The FastX interface offers basic Linux terminal window applications with a selection of tools. See for a detailed description of how to use FastX in the NREL HPC environment. Continue reading

Dav Nodes

August 21, 2019

The new DAV nodes accessible through now have NVIDIA GV100 cards installed. These NVIDIA cards allow visualization functions that were previously not available. The NVIDIA GV100 provides state of the art AI-enhanced design and visualization capabilities with extreme memory capacity, scalability, and performance that research science can use to create, build, and solve difficult and involved graphics problems.

Please contact HPC User Operations if you need any assistance or have questions in reference to the new functionality.

Continue reading

Node Use Efficiency

August 21, 2019

When building batch scripts it is advisable to first become familiar with the capabilities offered by the Eagle nodes. In creating your batch scripts, please keep in mind the memory capacities of the nodes, the type of cores available and to be aware that running multiple tasks on each node or the use of job arrays may assist in using your node hours more effectively. Further, assign the memory requirement for proper node type and process management based on the capability of differing nodes.

Some Slurm options that you might consider are:

Continue reading

Requesting Debug Partition Nodes on Eagle

July 10, 2019

In order to request a node on debug partition, a job needs to explicitly request for that partition using either -p debug or --partition=debug in your job submissions. The limits, type and number of nodes in the debug partition are as follows. More information on the debug partition can be found on the HPC site. Continue reading

Eagle Utilization is Increasing!

June 04, 2019

Users may have become accustomed to queue wait times being nearly nonexistent on Eagle over the past several months as it has been in use concurrently alongside Peregrine. As projects have migrated their software stacks to Eagle and Peregrine is being phased out, the majority of HPC usage is now taking place on Eagle. As a result, your jobs may now be subject to higher queue wait times as resources get managed by the job scheduler due to more frequent resource occupancy in overlapping job submissions. Here are some command-line tools to see information about Eagle occupancy and the queue status of your job(s): Continue reading

Why am I being "taxed" 3× to use Eagle instead of Peregrine

June 04, 2019

Eagle represents the state-of-the-art architecture as of 2018, whereas Peregrine does the same for ~2013. All aspects of computational hardware have advanced substantially in the interim, so we'll look at a few below, and how those might impact the amount of work you can get done given an hour on an Eagle node, vs. an hour on a Peregrine node. Continue reading