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Your First Login

Connecting to the Login Node​

Before you can access the HPC cluster, ensure that the following requirements are met:

Requirements​

  • Your account has been activated through the account management portal at https://accounts.fse-cslab.nl.
  • You have generated an SSH public key and uploaded it to the account management portal.
  • You have an SSH client installed on your computer:

Verify Your Account​

Log in to the account management portal and confirm that:

  1. Your account is active.
  2. Your SSH public key is listed and approved.

Connect to the Cluster​

Use the following command from a terminal:

ssh <username>@dacsgpu0001.fse-cslab.nl

Replace:

  • <username> with your I-number or P-number

If your SSH key is configured correctly, you should be logged after being prompted for your passphrase.

Connecting outside the UM​

In order to connect to lab resources from outside the University you need to setup a VPN connection using the Netbird client.

Just follow these instructions to set up your VPN connection.

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Before setting up your VPN connection, your supervisor must request VPN access for your account. This can be done either during the registration process or by creating a new ticket in TOPDESK.

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If you already have access to our hypervisor environment (XOA), there is no need to request VPN access separately. VPN access is automatically granted as part of the registration process for the hypervisor cluster.

Guidelines​

Usage of the login node​

The login node may only be used for creating, editing, and testing Slurm jobs. Execution of production or resource-intensive workloads on the login node is not permitted; such workloads must be run on compute nodes through Slurm.

Data​

Private Data​

Each user is provided with a personal home directory for storing files, scripts, configuration files, and other data related to their work on the cluster.

Your home directory is private by default and should be used for data that does not need to be shared with other users.

Shared Data Storage​

The /data filesystem is intended for sharing data between users, research groups, and projects.

  • Store shared datasets, project files, and other collaborative resources under /data.
  • Do not place files directly in /data. Instead, create a dedicated subdirectory for your project, group, or dataset.
  • Use meaningful directory names to make the data easy to locate and manage.
  • Organize files within your project directory using a clear folder structure.

Data Retention​

Storage capacity is a shared resource. Users are responsible for managing their data and removing files that are no longer required.

  • Delete temporary files when they are no longer needed.
  • Remove obsolete datasets and project data after completion.
  • Periodically review your directories to ensure that only relevant data is retained.

Keeping /data and your home directory organized helps ensure efficient use of storage resources and improves accessibility for all cluster users.

Data backup​

Data stored on the FSE-CSLAB infrastructure is not backed up. You are responsible for maintaining your own backups and safeguarding your data.

Troubleshooting​

If you cannot log in:

  • Verify that your account is activated.
  • Confirm that the correct SSH public key has been uploaded.
  • Ensure that you are using the matching private key on your local system.
  • Contact the HPC support team if the problem persists.