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High performance computing (HPC) accelerates the process of research discovery. Most domains now use HPC, and research is increasingly compute- and data-intensive as more scientists and engineers employ machine learning, neural networks and other artificial intelligence (AI) workflows. 

In collaboration with other units on campus, ITS-Research Services supports the Argon HPC system which features ~16,000 CPU processors and more than 300 GPU accelerators. 

The Interactive Data Analytics Service (IDAS) is a computational resource, launched mid 2019, that supports large-scale and collaborative data analytics workflows involving RStudio for R, Jupyter Notebook for Python, and more. Users may access HPC resources within the IDAS interface using Jupyter Notebooks, while performing interactive data analysis tasks with applications used for AI workflows.  

HPC and data science workshops are offered by ITS-RS training personnel; watch for upcoming sessions on the HPC website

For more information about research computing at the University of Iowa, please visit this website: http://hpc.uiowa.edu/

Getting Help

Please email research-computing@uiowa.edu with support requests or view the HPC site for the latest system updates.

Current Status

There are currently no alerts.

Maintenance

Services scheduled for maintenance over the next 7 days. Please refer to the calendar view of alerts for a complete schedule.
There is currently no planned maintenance.

Past 90 Days

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Alert History

Start: 
Friday, June 10, 2022 - 8:30am
End: 
Monday, June 13, 2022 - 9:30am
Updates
Monday, June 13, 2022 - 9:30am

This issue has been resolved.

Description

Some users are currently unable to access their home drives on Argon. Affected users may receive an error message like “Could not chdir to home directory /Users/hawkid: No such file or directory” when trying to access their Argon home directory. 

IDAS users might receive errors starting an IDAS session when requesting their hpchome be mounted.

ITS is investigating this issue and updates will be posted on the HPC System News support page.

Last updated: 
Monday, June 13, 2022 - 9:38am
Start: 
Thursday, June 9, 2022 - 2:45pm
End: 
Thursday, June 9, 2022 - 6:00pm
Updates
Friday, June 10, 2022 - 7:45am

This issue is resolved. 

Description

Some users are currently unable to access their home drives on Argon. Affected users may receive an error message like “Could not chdir to home directory /Users/hawkid: No such file or directory” when trying to access their Argon home directory.

ITS is investigating this issue and updates will be posted on the HPC System News support page.

Last updated: 
Friday, June 10, 2022 - 7:42am
Start: 
Wednesday, March 16, 2022 - 11:00am
End: 
Wednesday, March 16, 2022 - 2:30pm
Updates
Wednesday, March 16, 2022 - 2:30pm

This issue has been resolved.

Description

Argon HPC is experiencing a service degradation which may cause jobs to fail with errors indicating inability to create a lock for an input or output file. It may also cause apps to freeze or become non-responsive.

For timely updates, please see: https://hpc.uiowa.edu/recent-news

Last updated: 
Wednesday, March 16, 2022 - 2:35pm
Start: 
Tuesday, February 1, 2022 - 9:30am
End: 
Tuesday, February 1, 2022 - 12:45pm
Updates
Tuesday, February 1, 2022 - 1:15pm

This issue has been resolved.

Description

Argon and IDAS are currently unavailable. Users are seeing failed or stalled logins when attempting to connect to Argon. IDAS will still continue to function if Argon Homes or LSS are not being used. IDAS class instances are down if they have shared libraries or shared storage. 

Research Services is investigating this issue. Further update information can be found at https://hpc.uiowa.edu/system-news/argon-login-issues

Last updated: 
Tuesday, February 1, 2022 - 1:22pm
Start: 
Wednesday, November 17, 2021 - 4:00pm
End: 
Thursday, November 18, 2021 - 1:30pm
Description

Logins to the Argon HPC system may periodically fail due to an unresponsive login node. ITS is currently investigating the issue.

Users experiencing issues connecting to argon.hpc.uiowa.edu should connect to a login node directly instead:

  • argon-login-1.hpc.uiowa.edu
  • argon-login-3.hpc.uiowa.edu
  • argon-login-4.hpc.uiowa.edu
Last updated: 
Thursday, November 18, 2021 - 1:39pm
Start: 
Wednesday, August 11, 2021 - 8:00am
End: 
Thursday, August 12, 2021 - 8:00am
Description

The Argon HPC system will be in a regularly scheduled quarterly maintenance. For more details, see: HPC Summer 2021 Maintenance

Last updated: 
Thursday, August 12, 2021 - 8:00am
Start: 
Wednesday, July 7, 2021 - 6:00pm
End: 
Thursday, July 15, 2021 - 10:00am
Updates
Thursday, July 15, 2021 - 10:00am

The issue has been resolved.

Description

One of the servers for the Argon Home directories is having an issue with file locks. If your home account is on this server, you may experience processes that get stuck shortly after launching. The problem is being investigated and will be mitigated as soon as possible.

Last updated: 
Thursday, July 15, 2021 - 10:02am

High Performance Computing - HPC Contact Information

General HPC Help Requests - research-computing@uiowa.edu

Sai Ramadugu - saikumar-ramadugu@uiowa.edu

Glenn Johnson - glenn-johnson@uiowa.edu