[SciPy-dev] On entry to DGESDD parameter number 12 had an illegal value

Nils Wagner nwagner at mecha.uni-stuttgart.de
Fri May 20 14:04:43 CDT 2005


On Fri, 20 May 2005 11:58:03 -0700
  Stephen Walton <stephen.walton at csun.edu> wrote:
> Nils Wagner wrote:
> 
>> Hi all,
>>
>> Can someone reproduce the following error ?
>>
>> scipy.test(1,verbosity=10)
>>
>> ...
>> check_random (scipy.linalg.decomp.test_decomp.test_svd) 
>>** On entry to 
>> DGESDD parameter number 12 had an illegal value 
> 
> I've tried several times to reproduce this on both FC1 
>and FC3.  Using Python 2.3 on FC1, scipy.test(1) passes 
>all tests.  Latest Scipy CVS as of today.
> 
Please use l a t e s t f2py (cvs) and run the test again.

You can also try

from scipy import *
n = 20
m = 15
a = rand(n,m)+1j*rand(n,m)
u,s,vt,info = linalg.flapack.zgesdd(a)

I am curious about your findings.

Nils

> 
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