Newbie here, hope to understand SGE usage.

I've successfully configured virtual_free as a complex for telling SGE how much 
memory is needed when submitting a job, as described here:

https://docs.oracle.com/cd/E19957-01/820-0698/6ncdvjclk/index.html#i1000029

How do I do the same for telling SGE how many CPU cores a job needs? For 
example:

                qsub -l mem=24G,cpu=4 myjob

Obviously I'd need for SGE to keep track of the actual CPU utilization in the 
host, just as virtual_free is being tracked independently of the SGE jobs.

The reason I want to configure this is that one job might use multiple cores, 
so I need for SGE to know which server has enough free cores to satisfy the job 
being submitted. Is there another way to do this?

Hope this wasn't a dumb question.

Thank you all for your time.

John
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