Can I create a custom executor?

[fa2k]

I'm working on a SLURM cluster that requires --mem-per-cpu, and does not allow --mem.

Can I force nextflow to use a modified copy of SlurmExecutor.groovy (https://github.com/nextflow-io/nextflow/blob/master/modules/nextflow/src/main/groovy/nextflow/executor/SlurmExecutor.groovy) or otherwise override the SLURM executor?

I can of course set clusterOptions to set --mem-per-cpu, but many processes rely on the value of memory, so they won't work well if I set memory to null.

Or is there maybe an alternative solution? I'm also going to get in touch with the cluster admins and see if they allow to use --mem instead.

[bentsherman]

Hi @fa2k , there is actually a PR #4023 in the works to add a config option for --mem-per-cpu, so you won't have to create a whole new executor 😄

[fa2k]

That's fantastic! Thanks for the reply.