HPG Interfaces

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You use Interfaces to interact with the system, manage data, initialize computation, and view the results. The main categories of interfaces 'Command-Line' also known as Terminal, Graphical User Interfaces, and Web Interfaces or applications for more specialized use. Some distinctions here are blurred because, for example, you can open a Terminal while using a Web Interface like JupyterHub or Open OnDemand, but mostly you use a command-line Terminal interface through SSH connections.

Connecting to a HiPerGator Terminal via SSH

To work on HiPerGator you will have to connect to hpg.rc.ufl.edu from your local computer either via SSH (terminal session) or via one of the web/application interfaces we provide such as Galaxy, Open OnDemand, or JupyterHub. You can also SSH Using VSCode to easily view and edit files, but remember to not run jobs on it, and use sbatch instead.

The default port 22 will require password authentication whereas port 2222 can be used for ssh key authentication.

Note that the UF security requirements include the use of Multi-Factor Authentication when connecting to HiPerGator. See the SSH Multiplexing help if you are connecting from Linux or MacOS to reduce the frequency of MFA use.

For any given command below, <username> should be replaced with the UFRC username (same as your GatorLink username).

Connecting from Windows

Expand this section to view instructions for logging in with Windows.

Since Microsoft Windows does not come with a built-in SSH client, you must download a client from the web.

For University-managed computers PuTTY, Tabby, and Git Bash are approved for 'fast track' installations.

Tabby

• Download Tabby to your local machine: tabby-version#-setup.exe or tabby-version#-portable.zip for a portable version.
• Start the program and click Settings > Profiles > +New profile > SSH connection

 Name: HiPerGator
 Host: hpg.rc.ufl.edu
 Username: <username>

• Keep Authentication on Auto and don't set a password, this will let the prompt work
• Click "Save"
• Click on the window icon "New tab with profile" and select "HiPerGator hpg.rc.ufl.edu". Success!

PuTTY

• Download PuTTY to your local machine and start the program.
• Connect to hpg.rc.ufl.edu.
• At the login prompt, enter your username (this should be the same as your GatorLink username)
• Enter your password when prompted. You are now connected and ready to work!

Connecting from Linux and MacOS

Expand to view instructions for connecting from Linux or MacOS.

You may omit GatorLinkUsername if the username on your local computer matches your GatorLink username e.g.

Open a terminal and run

$ ssh <GatorLink Username>@hpg.rc.ufl.edu
or
$ ssh hpg.rc.ufl.edu

Enter your password when the prompt appears. You are now connected to a login node and your working directory will be /home/<GatorLink>, ready to work!

Logging in via web browser

Expand to view instructions for Logging in via web browser.

• To start a GUI application go to https://ood.rc.ufl.edu and choose the application you would like to use, for example HiPerGator Desktop is a linux GUI.
  • To start a Jupyter Notebook with OOD, select the “Jupyter Notebook” application server under the “Interactive Applications” tab on the main dashboard. Specify the resources you need in the resource request and click “Launch” at the bottom of the form. Once your job starts, click “Connect to Jupyter” to start your Notebook.
• To start a Jupyter Notebook go to http://jhub.rc.ufl.edu and select the resources you need. This JupyterHub server has preset resource options.
  • Jupyterhub and OutOfMemory (OOM) – if your Notebook stops responding it might be an indication of the job running out of memory. Currently this does not produce an error message. You can check your /home/<user>/jupyter slurm spawner logs to be sure. You will need to restart the job with additional RAM.
• To start a Galaxy instance go to https://galaxy.rc.ufl.edu/. Galaxy is a web-based framework for accessible, reproducible, and transparent biological computing.

Invalid Password

If you have forgotten your password or need to change it, use the following link to set a new one: Change or Reset Password

NOTE: Research Computing now uses Gatorlink Authentication for all passwords. Please use the UF Gatorlink password system for all password issues.