Limit parallel tasks on cluster

[dominikburri]

By default, the slurm executer does not have a limit on the number of tasks will be handled in a parallel manner. See here: https://www.nextflow.io/docs/latest/config.html.

It would good to set such a limit, e.g. queueSize = 256.

Though I don't know in which scope to set this, the documentation above can be helpful to resolve this. Likely needed as an own scope "executor" with queueSize as a setting.