[Numpy-discussion] numpy.linalg.qr bug on 64-bit platforms

Travis Oliphant oliphant@ee.byu....
Wed Mar 7 13:12:47 CST 2007


Steffen Loeck wrote:

>Fernando Perez wrote:
>  
>
>>I recently got a report of a bug triggered only on 64-bit hardware,
>>and on a machine (in case it's relevant) that runs python 2.5.  This
>>is with current numpy SVN which I just rebuilt a moment ago to
>>triple-check:
>>
>>In [3]: a = numpy.array([[1.0,2],[3,4]])
>>
>>In [4]: numpy.linalg.qr(a)
>> ** On entry to DGEQRF parameter number  2 had an illegal value
>>sage[~]>  # dumped back at system prompt
>>    
>>
>
>Has there been any progress in solving this problem? I get the same error 
>message and have no idea how to solve it.
>  
>
I just added a patch from Lars Bittrich that probably solves it.  Try it 
now.

-Travis



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