[Numpy-discussion] NumPy-Discussion OpenBLAS and dotblas

Robert Kern robert.kern at gmail.com
Tue Aug 12 18:14:16 EDT 2014

On Tue, Aug 12, 2014 at 10:35 PM, Sturla Molden <sturla.molden at gmail.com> wrote:
> Ralf Gommers <ralf.gommers at gmail.com> wrote:
>> No. Numpy uses those libs when they're detected, but it falls back on its
>> own dot implementation if they're not found. From first bullet under
>> <a
>> href="http://scipy.org/scipylib/building/linux.html#generic-instructions:">http://scipy.org/scipylib/building/linux.html#generic-instructions:</a>
>> "BLAS
>> and LAPACK libraries (optional but strongly recommended for NumPy, required
>> for SciPy)".
>> BLAS/LAPACK are heavy dependencies that often give problems, which is why
>> you don't want to require them for the casual user that only needs numpy
>> arrays to make some plots for examples.
> Maybe we are not talking about the same thing, but isn't blas_lite.c and
> lapack_lite.c more or less f2c'd versions of reference BLAS and reference

Not all of them, no. Just the routines that numpy itself uses. Hence, "lite".

Robert Kern

More information about the NumPy-Discussion mailing list