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Project Description

bufferkdtree

The bufferkdtree package is a Python library that aims at accelerating nearest neighbor computations using both k-d trees and modern many-core devices such as graphics processing units (GPUs). The implementation is based on OpenCL.

The buffer k-d tree technique can be seen as an intermediate version between a standard parallel k-d tree traversal (on multi-core systems) and a massively-parallel brute-force implementation for nearest neighbor search. In particular, it makes use of the top of a standard k-d tree (which induces a spatial subdivision of the space) and resorts to a simple yet efficient brute-force implementation for processing chunks of “big” leaves. The implementation is well-suited for data sets with a large reference set (e.g., 1,000,000 points) and a huge query set (e.g., 10,000,000 points) given a moderate dimensionality of the search space (e.g., from d=5 to d=50).

Documentation

See the documentation for details and examples.

Dependencies

The bufferkdtree package has been tested under Python 2.6/2.7/3.*. The required Python dependencies are:

  • NumPy >= 1.11.0

Further, Swig, OpenCL (version >= 1.2), setuptools, and a working C/C++ compiler need to be available. See the documentation for more details.

Quickstart

The package can easily be installed via pip via:

pip install bufferkdtree

To install the package from the sources, first get the current stable release via:

git clone https://github.com/gieseke/bufferkdtree.git

Afterwards, on Linux systems, you can install the package locally for the current user via:

python setup.py install --user

On Debian/Ubuntu systems, the package can be installed globally for all users via:

python setup.py build
sudo python setup.py install

Disclaimer

The source code is published under the GNU General Public License (GPLv2). The authors are not responsible for any implications that stem from the use of this software.

Release History

Release History

1.3

This version

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1.2

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1.1.1

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1.1

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1.0.2

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1.0.1

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TODO: Figure out how to actually get changelog content.

Changelog content for this version goes here.

Donec et mollis dolor. Praesent et diam eget libero egestas mattis sit amet vitae augue. Nam tincidunt congue enim, ut porta lorem lacinia consectetur. Donec ut libero sed arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet, consectetur adipiscing elit.

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1.0

History Node

TODO: Figure out how to actually get changelog content.

Changelog content for this version goes here.

Donec et mollis dolor. Praesent et diam eget libero egestas mattis sit amet vitae augue. Nam tincidunt congue enim, ut porta lorem lacinia consectetur. Donec ut libero sed arcu vehicula ultricies a non tortor. Lorem ipsum dolor sit amet, consectetur adipiscing elit.

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Download Files

Download Files

TODO: Brief introduction on what you do with files - including link to relevant help section.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
bufferkdtree-1.3.tar.gz (192.0 kB) Copy SHA256 Checksum SHA256 Source Nov 11, 2016

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