Does ACML now provide a CBLAS interface? Matthieu
2012/5/12 Thomas Unterthiner <[email protected]> > > On 05/12/2012 03:27 PM, [email protected] wrote: > > 12.05.2012 00:54, Thomas Unterthiner kirjoitti: > > [clip] > >> > The process will have 100% CPU usage and will not show any activity > >> > under strace. A gdb backtrace looks as follows: > >> > > >> > (gdb) bt > >> > #0 0x00007fdcc000e524 in ?? () > >> > from /usr/lib/python2.7/dist-packages/numpy/core/multiarray.so > > [clip] > > > > The backtrace looks like it does not use ACML. Does > > > > from numpy.core._dotblas import dot > > > > work? > > > > Thanks for having a look at this. The following was tried with the > numpy that comes from the Ubuntu repo and symlinked ACML: > > > $ python > Python 2.7.3 (default, Apr 20 2012, 22:39:59) > [GCC 4.6.3] on linux2 > Type "help", "copyright", "credits" or "license" for more information. > >>> from numpy.core._dotblas import dot > Traceback (most recent call last): > File "<stdin>", line 1, in <module> > ImportError: /usr/lib/python2.7/dist-packages/numpy/core/_dotblas.so: > undefined symbol: cblas_cdotc_sub > >>> > > > Following up: > > $ ldd /usr/lib/python2.7/dist-packages/numpy/core/_dotblas.so > linux-vdso.so.1 => (0x00007fff3de00000) > libblas.so.3gf => /usr/lib/libblas.so.3gf (0x00007f10965f8000) > libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f1096238000) > librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f1096030000) > libgfortran.so.3 => /usr/lib/x86_64-linux-gnu/libgfortran.so.3 > (0x00007f1095d18000) > libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f1095a18000) > /lib64/ld-linux-x86-64.so.2 (0x00007f1098a88000) > libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 > (0x00007f10957f8000) > libquadmath.so.0 => /usr/lib/x86_64-linux-gnu/libquadmath.so.0 > (0x00007f10955c0000) > $ ls -lh /usr/lib/libblas.so.3gf > lrwxrwxrwx 1 root root 32 May 11 22:27 /usr/lib/libblas.so.3gf -> > /etc/alternatives/libblas.so.3gf > $ ls -lh /etc/alternatives/libblas.so.3gf > lrwxrwxrwx 1 root root 45 May 11 22:36 /etc/alternatives/libblas.so.3gf > -> /opt/acml5.1.0/gfortran64_fma4/lib/libacml.so > > > > Cheers > _______________________________________________ > NumPy-Discussion mailing list > [email protected] > http://mail.scipy.org/mailman/listinfo/numpy-discussion > -- Information System Engineer, Ph.D. Blog: http://matt.eifelle.com LinkedIn: http://www.linkedin.com/in/matthieubrucher
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