Repository files navigation

xtensor-blas is an extension to the xtensor library, offering bindings to BLAS and LAPACK libraries through cxxblas and cxxlapack from theFLENS project.

xtensor-blas currently provides non-broadcastingdot,norm (1- and 2-norm for vectors),inverse,solve,eig,cross,det,slogdet,matrix_rank,inv,cholesky,qr,svd in thext::linalg namespace (check the correspondingxlinalg.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 theblas andlapack namespace.

xtensor andxtensor-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

xtensor-blas is a header-only library. We provide a package for the mamba (or conda) package manager.

mamba install -c conda-forge xtensor-blas

which will also install the corextensor package.

Or you can directly install it from the sources:

cmake -D CMAKE_INSTALL_PREFIX=your_install_prefixmake install

To build the tests or actually usextensor-blas, you will need binaries for

• openblas
• lapack

which are also available on conda-forge.

You can play withxtensor interactively in a Jupyter notebook right now! Just click on the binder link below:

The C++ support in Jupyter is powered by thexeus-cling C++ kernel. Together with xeus-cling, xtensor enables a similar workflow to that of NumPy with the IPython Jupyter kernel.

For more information on usingxtensor, check out the reference documentation

http://xtensor-blas.readthedocs.io/

xtensor-blas depends on thextensor package

We use a shared copyright model that enables all contributors to maintain thecopyright on their contributions.

This software is licensed under the BSD-3-Clause license. See theLICENSE file for details.