This page contains frequently asked questions. If users have any trouble, questions, concerns, or suggestions, feel free to contact ARCC.

Contents

General ARCC Troubleshooting

For general issues please see our Known Issues page to see if the problem could be caused by something that we already are aware of and recommended solutions or work arounds.

General Problems

My directory is full, can I get more space?

My directory is full (I’m getting a quota limit warning). Can I get more space?

Rarely do we increase /home directory space and ask that you please clean up any unnecessary files first.
To determine what is taking up space in your home directory, you can cd to our home directory, then run a du -h --max-depth=1 command to determine what’s taking up space in your home folder.
You may want to move files from your /home directory to your /project directory if appropriate to share with other project members, or if your data isn’t needed long term or is backed up elsewhere, you may move it to your /gscratch directory.
If the problem persists, email arcc-help@uwyo.edu to describe your issue.

Can I have sudo access to the cluster?

May I have sudo access to the cluster?

Users are not permitted to have sudo access. Software can be installed anywhere that users have read/write/access (usually their associated /home, /gscratch and /project spaces. Software should be installed to one of these users associated locations.

Users can also email arcc-help@uwyo.edu for assistance.

I can’t access my Alcova storage

This can happen for a number of reasons.

If you’re trying to access Alcova from off campus, you will need to use the UWyo VPN to get onto the UWyo network.

See the Connecting from an Off-Campus network section on the Getting Connected to Alcova page.

If this doesn’t help, please contact ARCC at arcc-help@uwyo.edu so we may troubleshoot your issue.

My UWYO account is locked/disabled

My UWyo user account is locked/disabled, can ARCC restore it so I can use ARCC resources?

No, ARCC does not manage UWyo accounts, but to start troubleshooting, go here: Password Resets and Account Lock Outs
- If you are an external collaborator, you will need to contact the UWIT Accounts Office to reset your password
- Otherwise, call UW IT Helpdesk to have it unlocked at 766-HELP ( on campus: 6-4357)
- For further information on UWyo accounts see UW Accounts FAQ

Do I need a smart phone to use two-factor for ARCC Services?

Do I need a smart phone to use two-factor for ARCC services?

No, there are other options:
- You have to purchase a Yubikey and then self enroll the key or have it set up by UWIT.
- You can enroll in any phone number or device on Duo.
  - When logging into Beartooth using the landline method, type “<your password>, phone“ and your enrolled number will get a call.

How can I get more information about the cluster status and jobs running on the cluster currently?

Cluster usage and job information is available from a number of different locations:

Users can query cluster and job information as indicated here.
Users can get general cluster status and job nformation from OnDemand:
- You can see your job information from the drop down menu under Jobs->Active Jobs
  then you can expand your job ID for more information.
- You can see overall cluster usage and status from the drop down menu under Clusters->Medicinebow System Status:
  This will display a graphic of overall usage in different partitions:

How can I determine which software packages are installed and available on the cluster?

How do I find out which software packages are installed/available

While logged into the cluster, executing the command "module spider" will list all modules installed on the cluster on which you’re logged in.

$ module spider
To learn more about a package execute:

$ module spider Foo

where "Foo" is the name of a module.

To find detailed information about a particular package you
must specify the version if there is more than one version:

$ module spider Foo/11.1

How do I run my code on the cluster?

You must submit your code to the job scheduler. Running code on login nodes is not permitted.
- For more information about the job scheduler please see our page on Slurm.

Questions Related to Migration: Beartooth to MedicineBow

I’m having trouble logging into Medicinebow OnDemand

Please reference the ARCC Login Page and how to log in here.

I’m having trouble SSH’ing to Medicinebow

New users trying to ssh for the first time without configuring SSH authentication will recieve an error message as follows:
ssh <username>@medicinebow.arcc.uwyo.edu: Permission denied (publickey)

ARCC has changed the way users authenticate over SSH to Medicinebow and authentication must be configured with SSH keys. See this page on configuring SSH keys to SSH into Medicinebow.

How do I move my data from Beartooth to Medicinebow?

The easiest method for moving data from Beartooth to Medicinebow is to use Globus. Instructions for logging into and configuring Globus and moving data between Beartooth and Medicinebow may be found here.
Alternative methods for moving data are detailed here.

Questions Related to Migration: Alcova to ARCC Data Portal Migration

I can’t access my alcova data post migration.

What is the location in which you’re attempting to access your data? If you’re accessing data at: alcova.arcc.uwyo.edu\<projectname> this was the prior location for Alcova data. Alcova projects were migrated effective June 2024 to data.arcc.uwyo.edu\cluster\alcova\<projectname> and users should access data at the new location.

If you are attempting to access your data at the new location and unable to get to it, this may be dependent on your network configuration. If you’re off campus you must connect to the UWYO network using Wyosecure VPN. Information for Wyosecure is available here.

If you’ve attempted to access the new alcova location and are connected to Wyosecure, but are still unable to do so, please contact arcc-help@uwyo.edu for assistance.

Beartooth

I am no longer able to access Beartooth when I could previously

Beartooth is scheduled for end of life/decommission effective January 2, 2025. Users should no longer be able to access Beartooth after this date.

Users with old projects on Beartooth should migrate to Medicinebow. Migration Request forms may be filled out for projects here, on our portal.

How do I access Beartooth when I am not on the UWyo network?

Beartooth's login nodes are on the Science DMZ network outside of UWyo firewalls. Meaning you can log into Beartooth from anywhere as long as you have an internet connection and a terminal or ssh client.

How do I run my code on Beartooth?

You must submit your code to the job scheduler. Running code on login nodes is not permitted.
- For more information about the job scheduler please see our page on Slurm.

How do I find out which software packages are installed/available on Beartooth?

While logged into Beartooth, executing the command "module spider" will list all modules installed on Beartooth.

$ module spider
To learn more about a package execute:

$ module spider Foo

where "Foo" is the name of a module.

To find detailed information about a particular package you
must specify the version if there is more than one version:

$ module spider Foo/11.1

Alcova

I can’t access my alcova data at alcova.arcc.uwyo.edu/<projectname>

Alcova was migrated to the ARCC Data Portal effective June 2024. Please see this page for information on accessing the your new project space.

How do I access my Alcova allocation when I am not on the UWyo network?

Users will need to use the UWyo VPN (wyosecure) to get onto the UWyo network.

Connecting to ARCC Data Portal/Alcova

Frequently Asked Questions (FAQs)