[Condor-users] How to ensure jobs scheduled first to free nodes

[Andrew Zahn <azahn@xxxxxxxxxxxxxxxx>]

Hi,

I would like to know how to ensure jobs are scheduled onto free nodes,  
that is 1 per node, rather then 1 per processor on a dual processor 
node. Also, I would like to know how to configure the same situation if 
the nodes are hyperthreaded and showing 4 processors.

What we have come up with here is,  In order to send jobs first to free 
nodes it can be used something like the condor_schedd configuration 
variable APPEND_RANK:

  http://www.cs.wisc.edu/condor/manual/v6.7/3_3Configuration.html#9795

(to append an expression at the rank coming from the jobs)

Something to consider the VM id is:

  APPEND_RANK = (0 - VirtualMachineId)

Is this the proper way to go about this?

Thanks,
Andrew Zahn