I haven't done any rigorous testing, but looks compiling the project I'm working on does use all CPUs. There's also this: https://hexdocs.pm/elixir/Kernel.Paral

I haven't done any rigorous testing, but looks compiling the project I'm working on does use all CPUs. There's also this: https://hexdocs.pm/elixir/Kernel.ParallelCompiler.html https://hexdocs.pm/elixir/Kernel.ParallelCompiler.html