Introduction
xtensor-blas is an extension to the xtensor library, offering bindings to BLAS and LAPACK libraries through cxxblas and cxxlapack from the FLENS project.
xtensor-blas currently provides non-broadcasting dot, norm (1- and 2-norm for vectors), inverse, solve,
eig, cross, det, slogdet, matrix_rank, inv, cholesky, qr, svd in the xt::linalg namespace (check the corresponding xlinalg.hpp header for the function signatures). The functions, and signatures, are trying to be 1-to-1 equivalent to NumPy.
Low-level functions to interface with BLAS or LAPACK with xtensor containers are also offered in the blas and lapack namespace.
xtensor and xtensor-blas require a modern C++ compiler supporting C++14. The following C++ compilers are supported:
- On Windows platforms, Visual C++ 2015 Update 2, or more recent
- On Unix platforms, gcc 4.9 or a recent version of Clang
Installation
xtensor-blas is a header-only library. We provide a package for the mamba (or conda) package manager.
mamba install -c conda-forge xtensor-blaswhich will also install the core xtensor package.
Or you can directly install it from the sources:
cmake -D CMAKE_INSTALL_PREFIX=your_install_prefix
make installTo build the tests or actually use xtensor-blas, you will need binaries for
openblaslapack
which are also available on conda-forge.
Trying it online
You can play with xtensor interactively in a Jupyter notebook right now! Just click on the binder link below:
The C++ support in Jupyter is powered by the xeus-cling C++ kernel. Together with xeus-cling, xtensor enables a similar workflow to that of NumPy with the IPython Jupyter kernel.
Documentation
For more information on using xtensor, check out the reference documentation
http://xtensor-blas.readthedocs.io/
Dependency on xtensor
xtensor-blas depends on the xtensor package
xtensor-blas |
xtensor |
|---|---|
| master | ^0.25.0 |
| 0.21.0 | ^0.25.0 |
| 0.20.0 | ^0.24.0 |
| 0.19.2 | ^0.23.3 |
| 0.19.1 | ^0.23.3 |
| 0.19.0 | ^0.23.0 |
| 0.18.0 | ^0.22.0 |
| 0.17.2 | ^0.21.4 |
| 0.17.1 | ^0.21.2 |
| 0.17.0 | ^0.21.1 |
| 0.16.1 | ^0.20.4 |
| 0.16.0 | ^0.20.0 |
License
We use a shared copyright model that enables all contributors to maintain the copyright on their contributions.
This software is licensed under the BSD-3-Clause license. See the LICENSE file for details.