fluent_info uses PBS specific things

[johrstrom]

It looks like we do some hacking to get ANSYS to run in an MPI environment. These use PBS environment variables that, while they're still valid in SLURM for the meantime, it's unlikely they'll be valid forever. This issue is to replace things like $$PBS_NODEFILE with the equivalent things like SLURM_JOB_NODELIST.

Here's an example of one such use.

bc_osc_ansys_workbench/template/bin/fluent_info

Line 5 in 4e9a03e

<b>2. Set number of processes:</b> <tt>$(cat $PBS_NODEFILE | wc -l)</tt>

This should probably happen shortly after Owens is fully ported to Slurm for convenience so we don't have to toggle all over the place, we can just use the Slurm equivalent variables.