[Feature Request] Provide python wheels

[sk-]

It would be great if wheels were provided for the Python package, at least the ones for linux (https://github.com/pypa/manylinux), as compilation of the package takes quite a while.

[davisking]

Yeah, that would be cool. Someone should submit a PR :)

[SmartManoj]

Why wheels are not compiled for latest version? https://pypi.org/simple/dlib/#files

[davisking]

Because dlib needs to compile itself relative to what hardware is available on you machine. E.g. CUDA, AVX, SSE, NEON, or some BLAS that is available. Those old binaries used a slow lowest common denominator setting and people complain and get confused about why they run slower.

On Jul 10, 2019, at 1:20 AM, SmartManoj [email protected] wrote:

Why wheels are not compiled for latest version? https://pypi.org/simple/dlib/#files

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[josephernest]

@davisking Are we sure that doing python setup.py install automatically uses the best available on the current computer? (i.e. AVX, SSE, NEON if available, etc.)

Or is there there a risk that python setup.py install will run a low-spec version whereas a faster version would be available?

TL;DR do we have to do things manually, in addition to python setup.py install, to be sure we are using the local machine's features?

I see

-- Enabling SSE2 instructions

but nothing about AVX, NEON, etc.

[davisking]

You should never have to specify this stuff. The python cmake build checks for what is available and enables everything by default. If you don't see the other things being enabled it's because the tests for their existence on your computer are coming back false. The tests should be robust since they build little test programs with those features and run them. If the programs can build and run then the features are enabled. If they don't then they aren't enabled.