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About the developer

170 Stars 14 Forks Apache License 2.0 289 Commits 40 Opened issues


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

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

For example, the following code of the function

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 |> &1 * &1) end

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

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.


Pelemay requires Clang or GCC and make.

Environment Variable

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



to your list of dependencies in
def deps do
    {:pelemay, "~> 0.0.15"},

Documentation is generated with ExDoc and published on HexDocs. The docs will be found at

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