High Performance Computing Center North
Once a parallel program has been successfully compiled it can be run on multi-processor/multi-core computing nodes directly or, in production environment, by means of a batch system. Batch systems keeps track of available system resources and takes care of scheduling jobs of multiple users running their tasks simultaneously. It typically organizes submitted jobs into some sort of prioritized queue. The batch system is also used to enforce local system resource usage and job scheduling policies.
HPC2N currently has two clusters which accepts local batch jobs; Abisko and Kebnekaise. Both are running SLURM. It is an Open Source job scheduler, which provides three key functions.
SLURM is designed to handle thousands of nodes in a single cluster, and can sustain throughput of 120,000 jobs per hour.