On Wed, Feb 24, 2021 at 5:36 AM Neal Becker <ndbeck...@gmail.com> wrote:
> See my earlier email - this is fedora 33, python3.9. > > I'm using fedora 33 standard numpy. > ldd says: > > /usr/lib64/python3.9/site-packages/numpy/core/_ > multiarray_umath.cpython-39-x86_64-linux-gnu.so: > linux-vdso.so.1 (0x00007ffdd1487000) > libflexiblas.so.3 => /lib64/libflexiblas.so.3 (0x00007f0512787000) > > So whatever flexiblas is doing controls blas. > flexiblas print > FlexiBLAS, version 3.0.4 > Copyright (C) 2014, 2015, 2016, 2017, 2018, 2019, 2020 Martin Koehler > and others. > This is free software; see the source code for copying conditions. > There is ABSOLUTELY NO WARRANTY; not even for MERCHANTABILITY or > FITNESS FOR A PARTICULAR PURPOSE. > > > Configured BLAS libraries: > System-wide (/etc/flexiblasrc): > > System-wide from config directory (/etc/flexiblasrc.d/) > OPENBLAS-OPENMP > library = libflexiblas_openblas-openmp.so > comment = > NETLIB > library = libflexiblas_netlib.so > comment = > ATLAS > library = libflexiblas_atlas.so > comment = > > User config (/home/nbecker/.flexiblasrc): > > Host config (/home/nbecker/.flexiblasrc.nbecker8): > > Available hooks: > > Backend and hook search paths: > /usr/lib64/flexiblas/ > > Default BLAS: > System: OPENBLAS-OPENMP > User: (none) > Host: (none) > Active Default: OPENBLAS-OPENMP (System) > Runtime properties: > verbose = 0 (System) > > So it looks to me it is using openblas-openmp. > > ISTR that there have been problems with openmp. There are a ton of OpenBLAS versions available in fedora 33. Just available via flexiblas 1. flexiblas-openblas-openmp.x86_64 : FlexiBLAS wrappers for OpenBLAS 2. flexiblas-openblas-openmp.i686 : FlexiBLAS wrappers for OpenBLAS 3. flexiblas-openblas-openmp64.x86_64 : FlexiBLAS wrappers for OpenBLAS (64-bit) 4. flexiblas-openblas-serial.x86_64 : FlexiBLAS wrappers for OpenBLAS 5. flexiblas-openblas-serial64.x86_64 : FlexiBLAS wrappers for OpenBLAS (64-bit) 6. flexiblas-openblas-threads.x86_64 : FlexiBLAS wrappers for OpenBLAS 7. flexiblas-openblas-threads64.x86_64 : FlexiBLAS wrappers for OpenBLAS (64-bit) I am not sure how to make use of flexiblas, but would explore that. We might need to do something with distutils to interoperate with it or maybe you can control it though site.cfg. There are 12 versions available in total. I would suggest trying serial or pthreads. Chuck
_______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@python.org https://mail.python.org/mailman/listinfo/numpy-discussion
