# num_cpus [![crates.io](http://meritbadge.herokuapp.com/num_cpus)](https://crates.io/crates/num_cpus) [![Travis CI Status](https://travis-ci.org/seanmonstar/num_cpus.svg?branch=master)](https://travis-ci.org/seanmonstar/num_cpus) [![AppVeyor status](https://ci.appveyor.com/api/projects/status/qn8t6grhko5jwno6?svg=true)](https://ci.appveyor.com/project/seanmonstar/num-cpus) - [Documentation](https://docs.rs/num_cpus) - [CHANGELOG](CHANGELOG.md) Count the number of CPUs on the current machine. ## Usage Add to Cargo.toml: ```toml [dependencies] num_cpus = "1.0" ``` In your `main.rs` or `lib.rs`: ```rust extern crate num_cpus; // count logical cores this process could try to use let num = num_cpus::get(); ```