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Provides OpenBLAS for python packaging

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  • License: BSD License
  • Requires: Python >=3.7
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Project description

OpenBLAS

We build OpenBLAS on Travis-CI (for linux aarch64, ppc64, s390x) and github actions for linux, windows, macOS x86_64 and macOS arm64.

Tarballs are at https://anaconda.org/scientific-python-nightly-wheels/openblas-libs/files

A project using the tarball, for Manylinux or macOS, will need the gfortran-install submodule used here, from https://github.com/MacPython/gfortran-install

We also build and upload a pip-installable wheel. The wheel is self-contained, it includes all needed gfortran support libraries. On windows, this is a single DLL. On linux we use auditwheel repair to mangle the shared object names.

The wheel supplies interfaces for building and using OpenBLAS in a python project like SciPy or NumPy:

Buildtime

  • get_include_dir(), get_lib_dir() and get_library() for use in compiler or project arguments
  • get_pkg_config() will return a multi-line text that can be saved into a file and used with pkg-config for build systems like meson. This works around the problem of relocatable pkg-config files since the windows build uses pkgconfiglite v0.28 which does not support --define-prefix.

Runtime

  • importing will load openblas into the executable and provide the openblas symbols.

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