CODEWITHSUNDEEP
erlangelixir
Alex Antonov
Alex Antonov

Reputation: 15216

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

I want to limit pool size by amount of CPUs. How can I know amount of cores in the CPU for elixir?

Upvotes: 7

Views: 2024

Answers (1)

Gazler
Gazler

Reputation: 84190

You can use System.schedulers_online/0 to get the number of available schedulers. This defaults to the number of cores.

This can be configured on boot with the +S flag http://erlang.org/doc/man/erl.html#+S

If you really need the number of cores then you can use:

:erlang.system_info(:logical_processors_available)

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

Upvotes: 11

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