[Python] DEFAULT option in simd_level of cli.py missing

[chiranmoyf]

Describe the bug, including details regarding any error messages, version, and platform.

There is an error when following this documentation to build and benchmark Arrow using Archery.
For aarch64 machines, except NONE, none of the existing options in simd_level are valid.
The error also occurs on x86_64, unless one of SSE4_2, AVX2, or AVX512 is specified.

Here's the check in dev/archery/archery/cli.py:

simd_level = click.Choice(["NONE", "SSE4_2", "AVX2", "AVX512"],
                          case_sensitive=True)

With the DEFAULT option in simd_level, Neon paths will be activated for aarch64 machines, and SSE4_2 will be activated for x86_64.

Here's the exact error message for aarch64 (Graviton3).
Error: Invalid value for '--simd-level': 'DEFAULT' is not one of 'NONE', 'SSE4_2', 'AVX2', 'AVX512'.

Component(s)

Python