Local setup

On Arch Linux:

sudo pacman -S zeromq
Rscript -e 'remotes::install_cran("clustermq")'

Save the following to ~/.config/clustermq/SSH.tmpl:

ssh -o "ExitOnForwardFailure yes" -f \
    -R {{ ctl_port }}:localhost:{{ local_port }} \
    -R {{ job_port }}:localhost:{{ fwd_port }} \
    {{ ssh_host }} \
    "module load R ZeroMQ foss/2020b && \
     R --no-save --no-restore -e \
        'clustermq:::ssh_proxy(ctl={{ ctl_port }}, job={{ job_port }})' \
        > {{ ssh_log | /dev/null }} 2>&1"

Next, add the following to your ~/.Rprofile. Replace user@host with your cluster username and hostname:

options(
  clustermq.scheduler = "ssh",
  clustermq.ssh.host = "farnam",
  clustermq.ssh.log = "~/cmq_ssh.log", # log for easier debugging
  clustermq.template = "~/.config/clustermq/SSH.tmpl",
  clustermq.ssh.timeout = 20
)

Now, SSH into the cluster and save the following to ~/.config/clustermq/SLURM.tmpl:

#!/bin/sh
#SBATCH --job-name={{ job_name }}
#SBATCH --output={{ log_file | /dev/null }}
#SBATCH --error={{ log_file | /dev/null }}
#SBATCH --mem-per-cpu={{ memory | 4096 }}
#SBATCH --array=1-{{ n_jobs }}
#SBATCH --cpus-per-task={{ cores | 1 }}
#SBATCH --time={{ time | 5 }}

module load R ZeroMQ foss/2020b

ulimit -v $(( 1024 * {{ memory | 4096 }} ))
CMQ_AUTH={{ auth }} R --no-save --no-restore -e 'clustermq:::worker("{{ master }}")'

and add the following to your ~/.Rprofile:

options(
  clustermq.scheduler = "slurm",
  clustermq.template = "~/.config/clustermq/SLURM.tmpl"
)