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# Usage of cluster with slurm
Information about che cluster and partitions could be obtained doing:
sinfo
scontrol show partition
With srun we cen reserve a subset of the resources of the compute nodes for out tasks:
More parameters are provided in the documentation.
srun --partition=production --time=00:30:00 --nodes=1 --pty bash -i
(take for half hour 1 node from the production partition and launch the command 'bash -i')
To simplify all this expression we can create a basic batch file with all directives and the code to run.
Is a good thing to redirect the output in a file to save it securely.
sbatch run.sh
Example of batch script
#!/bin/bash
#SBATCH -n 10
#SBATCH --time=00:30:00
...
mpirun ./my_exec_code
To see the queue of jobs in the system we can run
squeue
squeue --long
To remove a job from the queue we can run
scancel <job/process_id>