[Numpy-discussion] another numpy/ATLAS problem

[Charles R Harris]

On Thu, Nov 26, 2009 at 6:53 PM, David Warde-Farley <dwf at cs.toronto.edu>wrote:

> It seems like I've done this enough times on enough machines but I'm
> still running into problems...
>
> After installing what I'm pretty sure is a complete ATLAS+LAPACK and
> building numpy against it (appropriately editing site.cfg, etc.) I'm
> faced with this when building numpy-1.3.0:
>
> dwf at mirage:~/tmp$ python
> Python 2.6.4 (r264:75706, Nov  2 2009, 14:44:17)
> [GCC 4.4.1] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
>  >>> import numpy
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
>   File "/home/dwf/virtualenv/stable/lib/python2.6/site-packages/numpy/
> __init__.py", line 130, in <module>
>     import add_newdocs
>   File "/home/dwf/virtualenv/stable/lib/python2.6/site-packages/numpy/
> add_newdocs.py", line 9, in <module>
>     from lib import add_newdoc
>   File "/home/dwf/virtualenv/stable/lib/python2.6/site-packages/numpy/
> lib/__init__.py", line 13, in <module>
>     from polynomial import *
>   File "/home/dwf/virtualenv/stable/lib/python2.6/site-packages/numpy/
> lib/polynomial.py", line 18, in <module>
>     from numpy.linalg import eigvals, lstsq
>   File "/home/dwf/virtualenv/stable/lib/python2.6/site-packages/numpy/
> linalg/__init__.py", line 47, in <module>
>     from linalg import *
>   File "/home/dwf/virtualenv/stable/lib/python2.6/site-packages/numpy/
> linalg/linalg.py", line 22, in <module>
>     from numpy.linalg import lapack_lite
> ImportError: /home/dwf/virtualenv/stable/lib/python2.6/site-packages/
> numpy/linalg/lapack_lite.so: undefined symbol: dlamc3_
>
> FWIW these are the files that ATLAS has installed:
>
> dwf at mirage:~/Downloads$ ls /opt/sw/ATLAS/lib/ -al
> total 23472
> drwxr-xr-x 2 root root     4096 2009-11-26 20:36 .
> drwxr-xr-x 4 root root     4096 2009-11-26 20:36 ..
> -rw-r--r-- 1 root root 12963138 2009-11-26 20:36 libatlas.a
> -rw-r--r-- 1 root root   466244 2009-11-26 20:36 libcblas.a
> -rw-r--r-- 1 root root   572812 2009-11-26 20:36 libf77blas.a
> -rw-r--r-- 1 root root  8979016 2009-11-26 20:36 liblapack.a
> -rw-r--r-- 1 root root   466678 2009-11-26 20:36 libptcblas.a
> -rw-r--r-- 1 root root   573196 2009-11-26 20:36 libptf77blas.a
>
> liblapack.a looks big enough for it to be a complete LAPACK.
>
> ATLAS (3.9.17) was configured with the following:
>
> ../configure -Ss kern /usr/bin/gcc-4.2 --prefix=/opt/sw/ATLAS --with-
> netlib-lapack-tarfile=/home/dwf/tmp/lapack-lite-3.1.1.tgz -Fa alg -
> fPIC -D c -DPentiumCPS=2668 -t 4 -b 64
>
>
I never had luck with the netlib-lapack-tarfile=<file>
option, it didn't build lapack correctly. Try doing them separately.

Chuck
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