Re: compiling development sources

[Jaroslav Hajek]

On Thu, Feb 11, 2010 at 9:16 AM, Carlo de Falco <address@hidden> wrote:
>
> On 11 Feb 2010, at 03:39, Ben Abbott wrote:
>
>> It may be that your qr trouble has to do with lacking a qrupdate package?
>>
>> I began constructing a qrupdate package for Fink, but gave up before
>> completing it. However, the result is sufficient for Octave's purposes.
>>
>>
>>  
>> http://sourceforge.net/tracker/index.php?func=detail&aid=2861045&group_id=17203&atid=414256
>>
>> If you place the info, patch, and tar.gz files in the locations below,
>> Fink will see them and allow you to install qrupdate (you may need to
>> scanpackages and index).
>>
>>        /sw/fink/src/qrupdate-1.0.1.tar.gz
>>        /sw/fink/10.6/local/main/finkinfo/sci/qrupdate.info
>>        /sw/fink/10.6/local/main/finkinfo/sci/qrupdate.patch
>>
>> You can find the qrupdate-1.0.1.tar.gz file at the link below.
>>
>>        http://sourceforge.net/projects/qrupdate/files/
>>
>> I haven't tried to produce a Fink package for the more recent
>> qrupdate-1.1.x. If you are interested in trying, at a minimum, you'll need
>> to modify qrupdate.info to reference the proper tar.gz file and change the
>> associated MD5 as well.
>>
>> Ben
>
> Hi,
>
> I have compiled qrupdate-1.1 with g95 and I am linkng against it.
> If, eventually, I get my Octave install working I will consider creating a
> fink package and/or an application bundle
> but at the moment I am still stuck with the crashes during 'make check'
>
> running the tests in qr.cc manually I can proceed without error until the
> following:
>
>
>  Ac = [0.620405 + 0.956953i  0.480013 + 0.048806i  0.402627 + 0.338171i;
>      0.589077 + 0.658457i  0.013205 + 0.279323i  0.229284 + 0.721929i;
>      0.092758 + 0.345687i  0.928679 + 0.241052i  0.764536 + 0.832406i;
>      0.912098 + 0.721024i  0.049018 + 0.269452i  0.730029 + 0.796517i;
>      0.112849 + 0.603871i  0.486352 + 0.142337i  0.355646 + 0.151496i ];
>
>  uc = [0.20351 + 0.05401i;
>      0.13141 + 0.43708i;
>      0.29808 + 0.08789i;
>      0.69821 + 0.38844i;
>      0.74871 + 0.25821i ];
>
>  vc = [0.85839 + 0.29468i;
>      0.20820 + 0.93090i;
>      0.86184 + 0.34689i ];
>
>
>  [Q,R] = qr(Ac);
>  [Q,R] = qrupdate(Q,R,uc,vc);
>
> Program received signal EXC_BAD_ACCESS, Could not access memory.
> Reason: 13 at address: 0x00000000
> 0x8fe18c02 in __dyld_misaligned_stack_error ()
> (gdb)
>
> so it seems qrupdate works for real matrices/vectors but fails for complex?
> any clue what can be wrong? is there any more information I should provide?
>
> c.
>

Did you run the qrupdate test suite? Did it produce any failures?


-- 
RNDr. Jaroslav Hajek, PhD
computing expert & GNU Octave developer
Aeronautical Research and Test Institute (VZLU)
Prague, Czech Republic
url: www.highegg.matfyz.cz