HPC2N
High Performance Computing Center North
We have two types of GPU cards available on Kebnekaise, NVIDIA Tesla K80 (Kepler) and NVIDIA Tesla V100 (Volta).
To request GPU resources one has to include a GRES in the submit file. The general format is:
#SBATCH --gres=gpu:<type-of-card>:x
where <type-of-card> is either k80 or v100 and x = 1, 2, or 4 (4 only for the K80 type).
The K80 enabled nodes contain either two or four K80 cards, each K80 card contains two gpu engines.
To best use the resources with Slurm you need to have some basic information about the application you want to run.
Slurm will do its best to fit your job into the cluster, but you have to give it some hints of what you want it to do.
The parameters described below can be given directly as arguments to srun and sbatch.
If you don't give SLURM enough information, it will try to fit your job for best throughput (lowest possible queue time). This approach will not always give the best performance for your job.
[ Command line | Job submission file | Interactive ]
There are three ways to run a job with SLURM.
A job can simply be submitted from the command line with srun:
The official name for batch scripts in SLURM is Job Submission Files, but here we will use both names interchangeably.
