The cuknns is a GPU accelerated parallel library for fast exact k-nearest neighbor search of multidimensional data.
It is developed in CUDA and supports C and Matlab interfaces.
The current version V 2.1.0 compiles under Linux and requires the installation of CUDA version 4.2 or later and a CUDA enabled GPU to run.
Also an installation of MATLAB is recommended.
Download version 2.1.0 cuknn-toolbox-v2.1.0.tar
Download version 2.0.0: cuknn-toolbox-v2.0.0.tar