[Numpy-discussion] performance matrix multiplication vs. matlab
David Warde-Farley
dwf at cs.toronto.edu
Fri Jul 17 16:20:52 EDT 2009
On 17-Jul-09, at 3:57 PM, Jonathan Taylor wrote:
> File "/home/jtaylor/lib/python2.5/site-packages/numpy/linalg/
> __init__.py",
> line 47, in <module>
> from linalg import *
> File "/home/jtaylor/lib/python2.5/site-packages/numpy/linalg/
> linalg.py",
> line 22, in <module>
> from numpy.linalg import lapack_lite
> ImportError: /usr/local/lib/libptcblas.so: undefined symbol:
> ATL_cpttrsm
It doesn't look like you ATLAS is linked together properly,
specifically fblas. What fortran compiler are you using?
What does ldd /usr/local/lib/libptcblas.so say?
I seem to recall this sort of thing happening when g77 and gfortran
get mixed up together...
David
More information about the NumPy-Discussion
mailing list