Frequently Asked Questions
How can I connect to Mare Nostrum 5?
You can connect to MN5 via SSH in the terminal.
Check Accessing Cluster for more details.
How can I transfer files to Mare Nostrum 5?
You can transfer files to and from Mare Nostrum 5 using the scp command. Check Transferring Files for more details.
What is SLURM?
SLURM (Simple Linux Utility for Resource Management) is a HPC workload manager and job scheduler. It acts as the "traffic controller" for the supercomputer, ensuring that thousands of users can share the system's processors, memory, and GPUs fairly and efficiently.
How can I run a script or application on Mare Nostrum 5 or Deucalion?
In order to run a script or application on HPC systems such as Mare Nostrum 5 and Deucalion, users must submit a job to the queue using the sbatch command. For more information check Submitting a job
How can I check the status of my submitted jobs?
You can check the status of the jobs you submitted to SLURM with the squeue --me command.
How can I check my resource usage?
Compute
You can check your compute usage by typing the billing command.
Storage
You can check you storage quota with the quotahome and quotaprojects commands.
Compute
You can check your compute usage by typing the bsc_acct command.
Storage
You can check you storage quota with the command bsc_quota.
How can I have access to GPUs?
You can have access to GPUs by submitting jobs to Mare Nostrum 5's Accelerated Partition (ACC). For more information on MN5's partitions, check MN's System Overview.
Which partitions are available on Mare Nostrum 5?
Mare Nostrum 5 currently has two partitions: a General Purpose Partition (GPP) and an Accelerated Partition (ACC). While GPP is a CPU-focused partition, ACC allows users to run workflows that require GPU acceleration. More information about MN5 partitions can be found at MN's System Overview.
Can I run Docker/Kubernetes on Mare Nostrum 5?
No, Docker and Kubernetes are not currently supported on the existing partitions. Users should use Singularity for containerized tasks. Full support for Kubernetes and cloud-native orchestration is planned for the new AI-optimized partitions to be installed within the next MN5 upgrade.
What is Singularity?
Singularity is a container platform designed specifically for High-Performance Computing (HPC). Unlike Docker, it allows you to run applications in a portable, isolated environment without requiring root privileges, making it secure for shared supercomputers like Mare Nostrum 5 and Deucalion.