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The GRIT ssh bastion host is heimdall.grit.ucsb.edu / ssh.grit.ucsb.edu. It is set to force 'temporary one time pass', multi-factor authentication (TOTP MFA) via the google authenticator package. All ssh logins from non-campus IPs will be forced to enter a 6 d...

Methods: You can submit a ticket via email to: help@grit.ucsb.edu Or You can submit a ticket via the web interface available at: https://zammad.grit.ucsb.edu/  

Submitting a Ticket The following should always be included in every ticket to ensure efficient troubleshooting: The IP address, hostname, or URL of the server(s) or services involved. A screenshot or copy-pasted error message showing the issue, including...

Rust  The preferred Rust installation method is to do so in your user home folder. This allows for Rust to be managed on a per user basis rather than a system level install, and also allows individuals to manage their own Rust packages via Cargo. The followin...

Setting a new tmp directory often when using packages like raster the /tmp/ directory will fill with temporary files. To prevent this you can set a new temporary directory in one of two ways details below Temporarily set the tmp directory note that the ~/tm...

.bash_profile make sure your home directory has a ~/.bash_profile file and if not add one with the following: if [ -f ~/.bashrc ]; then source ~/.bashrc fi this will automatically load the .bashrc file on non-interactive logins (via ssh) while the .ba...

Adding Aliases note that the latest version is located at: /home/itt/idl older versions can be found in /home/itt/ if needed.  The following are needed only for those running IDL / IDLDE on CentOS and Ubuntu  IDL one liner echo 'if [[ -f /etc/os-release ...

To launch a Jupyter Notebook on https://hpc.grit.ucsb.edu select Interactive apps from the top menu bar and select Jupyter Notebook from the dropdown.  Once in the Jupyter Notebook spawner page you will need to fill in the following fields: Account: your...

The GRIT LLM server is available at llm.grit.ucsb.edu. It can be logged into with your GRIT credentials, or you can create an account with an email address if you dont have a GRIT account. 

Python VENV To install a custom kernel with whatever python modules you prefer please run the following, either via an ssh session to an hpc system or via the terminal application within jupyterhub: python3 -m venv ~/venvs/mytorch . ~/venvs/mytorch/bin/acti...

Cluster Status: You can check the cluster status via zabbix Issues starting interactive apps If you encounter an issue submitting an interactive job select the Session ID. This will take you to the session log files.  Download the script.sh and output.lo...

To launch an R Studio session on https://hpc.grit.ucsb.edu select Interactive apps from the top menu bar and select R Studio from the dropdown.  Once in the R Studio spawner page you will need to fill in the following fields: Account: your GRIT account n...

We have setup Linux desktop access via web accessible VNC on https://hpc.grit.ucsb.edu. The VMs are Ubuntu 24.04 with an xcfe desktop and a small handful of utilities installed including the spyder python IDE.  To launch a desktop session select the Desktop o...

Authentik / GRIT Single Sign On GRIT is rolling out Single Sign On (SSO) via Authentik to as many resources as possible in order to reduce the burden of passwords and multi-factor authentication (MFA). When signing in to a service with SSO you will initially ...

VS Code server is a VS Code session that is run on the HPC cluster and access via a web UI. To Launch a session select the VS Code Server interactive app from the hpc.grit.ucsb.edu dashboard or the Interactive apps dropdown. After selecting the application you...

Design Decisions How is the HPC stack setup and why?  The HPC stack is designed to provide a seamless experience while also reducing the barrier to entry while offering fair and equitable access to a shared resource. Open Ondemand allows for a simple and fle...

The HPC stack currently has 20TB of available scratch space at: /home/hpc-scratch This storage area is open to all and not backed up. Additionally any files not used within 3 months may be removed automatically. This scratch space is placed exclusively on PC...

To get access our systems, you need to set up a password. The GRIT domain password setup/reset portal can be found here: https://selfservice.grit.ucsb.edu/ Enter your netID (not full email address) in the Login field (ex. jgaucho).  After clicking ...

scrontab is Slurm’s “cron”—it lets you schedule recurring batch jobs (hourly, daily, weekly, etc.) to run on the cluster without you being logged in. It works a lot like Linux crontab, but submits jobs to Slurm.  How you use it Open your schedule: scrontab...