Are all processes started by a Slurm job killed on cancelling the job?

Question

If a Slurm job starts processes (could even be daemons), would all of them be automatically killed if I stop the job with scancel?

Answer 1

Yes if Slurm is configured with cgroup support. See details in the documentation

A cgroup is created upon job start and all processes belong to that cgroup . Once the job is terminated, the cgroup is removed and all processes then killed by the kernel.