Hi, I’m currently learning Elixir and I’ve come along this code (from the book “Programming Elixir >= 1.6”): defmodule Parallel do def pmap(collection, func) do collection |> Enum.map(&(Task.async(fn -> func.(&1) end))) |> Enum.map(&Task.await/1) end end When running the following…

The issue here is that you’re trying to parallelize too primitive operation. The cost of multiplication of two numbers is tiny comparing to spawning a new process of the VM. Also, in the pmap Enum.map is invoked twice.