[Numpy-discussion] eig hangs

[Travis Oliphant]

Robert Hetland wrote:

>I set up a linux machine without BLAS, LAPACK, ATLAS, hoping that
>lapack_lite would take over.  For the moment, I am not concerned
>about speed -- I just want something that will work with small
>matricies.  I installed numpy, and it passes all of the tests OK, but
>it hangs when doing eig:
>
>u, v = linalg.eig(rand(10,10))
># ....lots of nothing....
>
>Do you *need* the linear algebra libraries for eig? BTW,  inverse
>seems to work fine.
>
>-Rob
>
>  
>
 From ticket #5

>Greg Landrum pointed out that it may be a gcc 4.0 related 
>problem and proposed a workaround -- to add the option '-ffloat-store' to CFLAGS. Works for me !
>
>  
>
Are you using gcc 4.0?

-Travis