[SciPy-user] scipy fblas.so functions not found

Lev Givon lev@columbia....
Thu Jun 14 09:04:24 CDT 2007

Received from Lev Givon on Thu, Jun 14, 2007 at 09:41:22AM EDT:
> Received from Charlie Yanaitis on Thu, Jun 14, 2007 at 08:12:26AM EDT:
> > I'm hoping somebody could offer some advice. I've been stymied for a
> > while trying to build/install a good working version of scipy-0.5.2
> > on a Saturn Cluster that's running Red Hat RHEL4-U4. I'm using gcc
> > version 3.4.6 and python-2.5. I've tried to build the Atlas
> > variation, but was unsuccessful, so I back-tracked and reverted to
> > building and installing numpy and then scipy. Going this route,
> > scipy at least built and installed OK, but now, the fblas.so library
> > is missing functions and a user reported to me that they got the
> > following error:
> > 
> > ImportError: /usr/local/lib/python2.5/site-packages/scipy/linalg/fblas.so:
> > undefined symbol: srotmg_
> > 
> > If anybody can offer some advice on a fix or work around for this, I'd
> > appreciate it!
> > 
> > Thanks in advance!
> > 
> > Charlie Yanaitis
> The lapack libraries you are using probably were not compiled against
> the full blas source (the lapack source package from netlib includes
> an incomplete subset of the blas source files). You might want to try
> rebuilding the lapack rpm from Fedora 6 or 7 on your system; it
> appears to include a patch providing the missing blas routines.
> 							L.G.

I neglected to mention that Fedora also includes an atlas rpm that you
might want to try rebuilding on RHEL instead of the lapack package.


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