Feature request: config variable cpu_count

[temoto]

In many cases optimal value for [program:x] numprocs is equal to number of CPUs visible to OS. Writing exact value may be not appropriate in cases where single config is used in a heterogeneous cluster with different number of cores on each box.

Here's info how to determine number of CPUs.
http://stackoverflow.com/questions/1006289/how-to-find-out-the-number-of-cpus-in-python

[mnaberez]

Thanks for the suggestion and link. I'd rather not put this into the core of Supervisor. If you want to avoid multiple configuration files, an option would be to write a plugin. The twiddler plugin shows how to manipulate Supervisor's processes. Your own plugin would be able to scale process counts based on cores or any other criteria you want to program.