HCC Newsletter - April 2026

GPU Monitoring and Optimizing

With the increased number of applications running on Swan that utilize GPUs, please make sure to monitor and optimize your GPU usage. This way, you can ensure that the resources you are requesting are being fully utilized since the contrary can negatively affect your HCC group’s fair-share score and other HCC users.

The documentation page on GPU Monitoring and Optimizing provides information on how to track and report GPU utilization for both running and completed jobs, as well as suggestions on how to improve GPU utilization of your custom code.

Student Class Data Reminder

With the end of the semester approaching, HCC would like to remind students using HCC resources for classwork as part of a class group about the Class Group Policy

Namely, class group directories will be cleaned on the last day of the semester, May 8th. This includes locking HCC accounts created solely for the class and permanently deleting any student data in the class group directories. We strongly suggest students to move any important data from these directories elsewhere before May 8th. To continue using HCC resources as part of a research or creative activity group, please submit the Change/Add groups Form .

For more details, please see the Class Group section of HCC’s Policies.

Call for Applications: David Swanson Memorial Travel Award

HCC is pleased to announce the David Swanson Memorial Travel Award available for students (graduate or undergraduate) to travel to a conference to participate and perhaps present their research. We are looking for students interested in attending a computing or field related conference to represent the University of Nebraska and the Holland Computing Center.

We will likely award two awards this year, though we cannot guarantee that every interested student will be awarded the travel stipend. Each award will pay for travel, lodging, registration, and meals for the trip up to $3,000. All that would be required of the student is a quick write-up or letter of thanks to be sent to the fund’s caretakers.

The interested student should fill out the form HERE !

The deadline for the application is April 30.

Call for Papers: Special Issue of Advanced Technologies of Biomedical Image Processing

Prof. Dr. Yutong Liu and Dr. Mariano Uberti from Department of Radiology, Nebraska Medical Center are co-editing a Special Issue of Advanced Technologies of Biomedical Image Processing, including topics on high-performance computing (HPC) and high-throughput computing (HTC) in biomedical image analysis.

This is a great opportunity to showcase work by HCC researchers working with advanced techniques for biomedical image analysis done on HCC resources!

For more information about the Special Issue, including respective deadlines and topics, please see https://www.mdpi.com/journal/technologies/special_issues/I26QEPMB3T .

FAQ Section

I am graduating soon, what will happen with my HCC account?

Access to HCC resources is separate from access to NU resources, so you do not lose access to HCC when you graduate.

If the HCC account is part of a research group, the account will remain active until the owner of the group requests that the account needs to be deactivated or until the account hasn't been used for a minimum of an year, whichever comes first.

If the account holder continues collaborating with the HCC group owner as an outside collaborator, a proof of collaboration may be required. For more information on the User regulations please see here .

If the account is only part of a course group, then according to our class policy , the account will be deactivated one week after the course end date.

My student is graduating soon, what should I do before then to preserve their data?

If you are HCC group owner and you need access to your student's folders on Swan, please email hcc-support@unl.edu for access.

Please advise your students to write down the workflows they use on Swan and store reproducible scripts and materials on GitLab, GitHub, etc.

My students don’t need access to HCC resources anymore. How can I deactivate their HCC accounts?

If you are HCC group owner please send us an email at hcc-support@unl.edu with a list of the people whose HCC accounts should be deactivated, and we will proceed accordingly.

HCC In The News

Husker scientists name novel microorganism after Nebraska

HTC26 - Throughput Computing Week

The University of Wisconsin-Madison will be hostingThroughput Computing Week 2026 (HTC26) and will bring together the Throughput Computing community to share challenges, exchange recent advances and explore opportunities.

More details about this event are available on the HTC26 website: https://agenda.hep.wisc.edu/event/2432/

Upcoming Downtime

On Tuesday May 12th, HCC will be conducting maintenance and updates on HCC's Swan resource. This downtime will last approximately 3 days with HCC resources returning to service on May 14th. For more details on the maintenance, please visit https://status.hcc.unl.edu/cmo0arbvc01ung77iq1ysk9f0.

Any jobs on Swan that can not start and finish by May 12th will be held in queue. More information on this is available in our maintenance FAQ section.

https://hcc.unl.edu/docs/faq/#why-my-job-is-showing-reqnodenotavail-reserved-for-maintenance-before-a-downtime

Upcoming Training Opportunities!

HCC will be hosting “Introduction to High-Performance Computing in Python” Workshop in May, and the annual June Workshop Series every Tuesday in June.

Keep an eye on the upcoming registration emails! For more events in 2026, please check the Upcoming Events page.

Looking to reduce your wait time on Swan?

HCC wants to hear more about your research! If you acknowledge HCC in your publications, posters, or journal articles, you can receive a boost in priority on Swan!

Checkout the links below for more information!

Submit a request for the priority boost

https://hcc.unl.edu/acknowledgement-submission

Details on Acknowledgement Credits

https://hcc.unl.edu/docs/submitting_jobs/hcc_acknowledgment_credit/

HCC Summary for the last Month:

CPU Hours Utilized

GPU Hours Utilized

New Software Installs

Data Stored

8.2 Million Hours

69,000 Hours

14 Software Packages

~3,800 TiB

Recent Training Events:

GP-ENGINE - Migrating AI/ML workflows to Nautilus
Pixels to Enviro Patterns (PEP) Workshop
Husker AI Days: Introduction to Artificial Intelligence and Machine Learning using HCC