Abstracting Queues

[SteVwonder]

The current specification allows different queues to be selected when submitting a job, but it does not support:

• Listing the names of queues available on the system
• Querying the limitations of the various queues (e.g., timelimit, max num jobs, max num cores)
  • This is partially discussed under "policy" in Carving out space for topics related to J/PSI but that should be outside of J/PSI #61
• Isolating job status listing to a particular queue (performance-optimization)

Also probably somewhat related to abstracting similar functionality for the cluster as a whole (e.g., querying the number of nodes in the cluster)

[hategan]

I think the general consensus that has formed is that information about the cluster is beyond the scope of PSI/J. This could be part of a separate project, but this issue should probably not stay open here until such a project comes to life.

@andre-merzky, thoughts?