Elixirでコアをつかいきってみる

multicore.ex

defmodule Multicore do
  @moduledoc """
  Documentation for Multicore.
  """

  @doc """
  Hello world.

  ## Examples

      iex> Multicore.hello()
      :world

  """

  def sum(from, to) do
    Enum.reduce(from..to, fn x, acc -> x+acc end) |> IO.puts
  end

  def main do
    0..1000
    |> Enum.map(fn _ -> Task.async(fn -> sum(1, 100000) end) end)
    |> Enum.map(fn x -> Task.await(x) end)
  end
end