Welcome to Mjolnirs’s documentation!

Mjolnir is a computing cluster purchased by a group of PI’s from the Globe Institute located at the University of Copenhagen. Only employees or collaborators to the PI’s can get access to Mjolnir.

The cluster is maintained by: Bent Petersen (bent.petersen@sund.ku.dk) and Thomas Sicheritz-Pontén (thomassp@sund.ku.dk).

Note

This documentation is under active development and should not be considered as a finished product. It’s a live document.

Contents

• Home
• What is Mjolnir?
• VPN access and login
• SSH shortcut
• Hardware
• Project/data folders
• Databases
• Backup
• Disruptions
• Submitting jobs
  • Submitting an Interactive Job using srun
  • Submitting Jobs using sbatch
    • Step 1: Prepare your Script
    • Step 2: Submit your Job
    • Step 3: Monitor your Job
    • Step 4: View Job Output
    • Conclusion
  • Submitting batch arrays
    • Step 1: Create a Job Script
    • Step 2: Submit the Batch Array
    • Step 3: Monitor the Progress of the Batch Array
    • Step 4: Post-processing
• Canceling Jobs
  • Canceling a Specific Job
  • Canceling Multiple Jobs
  • Canceling a Job Array
  • Canceling Jobs by Partition or Node
  • Conclusion
• Monitoring Jobs
  • List jobs in the queue: squeue
  • Detailed job information: scontrol
  • Summary of completed jobs: sacct
  • Summary of completed jobs: sacct - advanced
• Monitoring nodes
• Software
  • Modules
    • What is a module?
    • Working with modules
    • Load/Unload Modules
    • List all installed modules
  • Conda Environments
• Software installation digest email
• New software request
• New user request
• Add/change primary email and change communication preference
• Tips & Tricks
• Discord server