PyDistance

PyDistance is a set of distance measure implementations optimized for a variety of processors with SIMD support able to be used from Python.

Requirements

CMake >= 3.10

Supported AVX Instruction Sets

AVX Instruction Set	SIMD_WIDTH option
Auto Vectorization	auto
AVX-128	128
AVX-256	256
AVX-512	512

Building

The setting SIMD_WIDTH may be specified to take full advantage of the target architecture, as follows:

$ mkdir build 
$ cd build
$ cmake .. [-D SIMD_WIDTH=<auto|128|256|512>]
$ make
$ cd lib

Usage

>>> import PyDistance as pd
>>> import numpy as np
>>> a=np.random.randint(0, 10, 8)
>>> a
array([4, 3, 5, 1, 4, 5, 7, 7])
>>> b=np.random.randint(0, 10, 8)
>>> b
array([1, 3, 3, 4, 1, 4, 3, 6])
>>> pd.euclidean(a,b)
7.0

Platforms

Contributing

PyDistance is a research project and for now, we are a small team! We actively encourage and support contributions. The source code is released under the GNU License.