T-Octree voxel data compression library

This Tucker-Octree (T-Octree) library compresses 3-dimensional dense datasets using octree multiresolution approach with Tucker decomposition. The collected core and factor matrices are further compressed with the ZFP library.

Installation

Typical cmake installation:

> mkdir build; cd build
> cmake .. -DCMAKE_BUILD_TYPE=Release -DEigen3_DIR="path/to/share/eigen3/cmake" -Dzfp_DIR="path/to/lib/cmake/zfp" -DCMAKE_INSTALL_PREFIX="<vlasiator-path>/vdf_compression"
> make install

After that add -Lpath/to/vdf_compression/lib to linker flags and -Ipath/to/vdf_compression/include to compiler flags for vlasiator.

Licensing

T-Octree is licensed under GPL2.0 or later (see LICENSE text).

Dependencies

T-Octree utilizes the following codes:

zfp (>=v1.0.1, may work with earlier)
Eigen3 (>=v3.4.0, may work with earlier)
Spectra C++ Library For Large Scale Eigenvalue Problems (included in contrib/include)
argparse (included in contrib/include)

Acknowledgements

This software library was built within project Adaptive Strategies Towards Expedient Recovery In eXascale (ASTERIX) at CSC – IT Center for Science Ltd. and University of Helsinki. Innovation Study ASTERIX has received funding through the Inno4scale project, which is funded by the European High-Performance Computing Joint Undertaking (JU) under Grant Agreement No 101118139. The JU receives support from the European Union's Horizon Europe Programme.

License

cschpc/tucker-octree

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