erlang - How can I know amount of cores in the CPU for elixir? -

i want limit pool size amount of cpus. how can know amount of cores in cpu elixir?

you can use system.schedulers_online/0 number of available schedulers. defaults number of cores.

this can configured on boot +s flag http://erlang.org/doc/man/erl.html#+s

if need number of cores can use:

:erlang.system_info(:logical_processors_available) 

you can see option (and many others) on http://www1.erlang.org/doc/man/erlang.html#system_info-1