8000 DOC: BLAS/LAPACK linking rules by 1fish2 · Pull Request #19447 · numpy/numpy · GitHub
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DOC: BLAS/LAPACK linking rules #19447

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Merged
merged 7 commits into from
Jul 13, 2021
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DOC: BLAS/LAPACK linking rules #19447

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7977994
Document BLAS/LAPACK linking rules
1fish2 Jul 10, 2021
83f2b22
.gitignore virtualenv's .python-version
1fish2 Jul 10, 2021
05d6e61
fix ")" position
1fish2 Jul 10, 2021
4452927
apply suggestions to the wheel case
1fish2 Jul 12, 2021
8a67d77
code review iteration
1fish2 Jul 12, 2021
e883802
Update numpy/distutils/misc_util.py
1fish2 Jul 13, 2021
599a72f
review feedback
1fish2 Jul 13, 2021
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apply suggestions to the wheel case
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@1fish2
1fish2 committed Jul 12, 2021
commit 445292716b0d43b97a6bf7646c424c8b0a2ec435
13 changes: 6 additions & 7 deletions numpy/distutils/misc_util.py
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Expand Up @@ -2365,13 +2365,12 @@ def show():
NumPy BLAS/LAPACK Installation Notes
------------------------------------
Installing a numpy wheel (e.g. ``pip install numpy``) includes
an embedded OpenBLAS library on every platform that has a wheel
available. (OpenBLAS implements the BLAS and LAPACK linear
algebra APIs.) In this case, ``show_config()`` reports
``library_dirs = ['/usr/local/lib']`` per the build time
configuration even if there's no libblas in that directory at
run time. The embedded OpenBLAS is a static link library
compiled with gcc/gfortran.
an OpenBLAS implementation of the BLAS and LAPACK linear algebra
APIs. In this case, ``library_dirs`` reports the build time
configuration; the OpenBLAS library is actually in
``site-packages/numpy.libs/`` or
``site-packages/numpy/.dylibs/`` and it's compiled with
gcc/gfortran.

Installing numpy from source (e.g.
``pip install numpy --no-binary numpy``) looks for BLAS and
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