kentaro/pelemay

Pelemay is a native compiler for Elixir, which generates SIMD instructions. It has a plan to generate for GPU code.

Pelemay

Pelemay = The Penta (Five) “Elemental Way”: Freedom, Insight, Beauty, Efficiency and Robustness

For example, the following code of the function map_square will be compiled to native code using SIMD instructions by Pelemay.

defmodule M do
  require Pelemay
  import Pelemay

  defpelemay do
    def map_square (list) do
      list
      |> Enum.map(& &1 * &1)
    end

    def string_replace(list) do
      list
      |> Enum.map(& String.replace(&1, "Fizz", "Buzz"))
    end
  end
end

Supported Platforms

Potentially, Pelemay may support any architectures that both Erlang and Clang or GCC are supported.

We've tested it well on the following processor architectures:

• x86_64
• ARM

We've tested it well on the following OS:

• macOS (64bit, including Apple Silicon M1 Mac on ARM native mode (unfortunately, not works on Rosetta 2))
• Linux (64bit)
• Nerves (Raspberry Pi 3)

I'm so sorry but Windows isn't be supported because of changing the builder of Pelemay.

We've tested it on the following Elixir versions:

• 1.9
• 1.11

We've tested it on the following OTP versions:

• 23
• 22
• 21
• 20

We've tested it on Clang 6 or later and GCC 7 or later. Potentially, Clang and GCC that supports auto-vectorization can generate native code with SIMD instructions by Pelemay.

Pelemay also supports Nerves.

Pre-installation

Pelemay requires Clang or GCC and make.

Environment Variable CC is recommended being set the path of the C compiler you want to use.

Installation

Add pelemay to your list of dependencies in mix.exs:

def deps do
  [
    {:pelemay, "~> 0.0.14"},
  ]
end

Documentation is generated with ExDoc and published on HexDocs. The docs will be found at https://hexdocs.pm/pelemay.