Tensor Toolbox
The Tensor Toolbox provides functionalities for the decomposition of tensors in tensor-train format [1] and spectral tensor-train format [2].
The toolbox provides the following tools:
TT-svd
TT-cross
TT-dmrg
TT-vectors
TT-matrices
Quatics TT-vectors/matrices (cross and dmrg)
TT-integration
Basic operations in TT format
Multi-linear algebra in TT format (Steepest descent, CG and GMRES)
STT-construction
STT-projection/interpolation
STT for single quantities and for fields
Installation
For everything to go smooth, I suggest that you first install some dependencies separately: numpy, scipy, matplotlib can be installed by:
$ pip install numpy scipy matplotlib
If you need MPI support in the TensorToolbox, you need to have an MPI back-end installed on your machine and add the right path on the $LD_LIBRARY_PATH, so that mpi4py can link to it. You should install mpi4py manually by
$ pip install mpi4py
When everything is set, you can install the TensorToolbox using:
$ pip install TensorToolbox
Some users might want to install the toolbox without MPI support. This is possible, but not through the pip command:
$ pip install –download=”/pth/to/downloaded/files” TensorToolbox
$ cd /pth/to/downloaded/files
$ tar xzf TensorToolbox-x.x.x.tar.gz
$ cd TensorToolbox-x.x.x
$ python setup.py install –without-mpi4py
Test Installation
You can test whether all the functionalities work by running the unit tests.
>>> import TensorToolbox >>> TensorToolbox.RunUnitTests(maxprocs=None)
where maxprocs defines the number of processors to be used if MPI support is activated. Be patient. The number of unit tests grows with the number of functionalities implemented in the software.
Examples
Examples can be found inside the package. To find them, download the source:
$ pip install –download=”/pth/to/downloaded/files” TensorToolbox
$ cd /pth/to/downloaded/files
$ tar xzf TensorToolbox-x.x.x.tar.gz
$ cd TensorToolbox-x.x.x
$ cd Examples
References
[1] Oseledets, I. (2011). Tensor-train decomposition. SIAM Journal on Scientific Computing, 33(5), 2295–2317. Retrieved from http://epubs.siam.org/doi/pdf/10.1137/090752286
[2] Bigoni, D. and Marzouk, Y.M. and Engsig-Karup, A.P. (2014) Spectral tensor-train decomposition. (Submitted) ArXiv: http://arxiv.org/abs/1405.5713
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Metadata
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Release files for TensorToolbox 0.3.6
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
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| TensorToolbox-0.3.6.tar.gz | 1.5 MB | Details |
Release files / TensorToolbox-0.3.6.tar.gz
| Download URL | TensorToolbox-0.3.6.tar.gz |
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