When trying to do parallelization on clusters following the example given on the systemPipeR tutorial, section 8, I get an error asking to export Slurm to your PATH:

   > library(batchtools)
    > resources <- list(walltime=120, ntasks=1, ncpus=4, memory=1024)
    > sal <- clusterRun(sal, 
    +                   FUN = runWF,
    +                   more.args = list(),
    +                   conffile = ".batchtools.conf.R",
    +                   template = "batchtools.slurm.tmpl",
    +                   Njobs = 1,
    +                   runid = "01",
    +                   resourceList = resources)
Error in clusterRun(sal, FUN = runWF, more.args = list(), conffile = ".batchtools.conf.R",  : 
  Please export Slurm to your PATH

So, how do I do this? I am using R in Ubuntu 20.04

Thank you!

R in Ubuntu 20.04 suggests that you are working with a local machine, is that correct, or do you work on a cluster/HPC environment? SLURM is a HPC scheduler to submit jobs, and on HPC systems that use it is should be in PATH by default. So what machine/environment are you on?