[Octave-bug-tracker] [bug #31512] Problem with code on Linux octave 3.2.3 and 3.2.4/// OK on mac w/ 3.2.3

[kody law]

Follow-up Comment #10, bug #31512 (project octave):

Many thanks for your attention, John.

I should clarify that there are TWO issues here, and we are focusing on the
trivial (perhaps also easier) of the two.  The remainder problem always
exists, across all systems.  This is intrinsic to octave, and a difference
between matlab which I agree would be a good thing to resolve, but I was
mentioning as a side-comment, and I am not too concerned about.  

Nonetheless, again, a completely separate issue is central to this string and
that is the blow-up on 2 distinct systems of the code I attached below.  And,
again, this code runs properly on matlab and on octave on my mac, as well as
Kubuntu 9.10, with a 64-bit kernel.  

It does not work on

SuSe v.11

Francesca is running 64-bit SLES10 SP3 with kernel 2.6.16.60-0.69.1-smp. GCC
version is 4.1.2 and Octave was built with compiler options "-O3
-mfpmath=sse"
and linked against libbgsl and fftw3. 

in the sense described below, that the variable en blows up.



AGAIN, forwarded priority sub-string of this submission:

Sat 06 Nov 2010 01:00:39 PM GMT, comment #6:

Further to the first comment of Rik. We have failure on 2 systems... is it
possible for you to run on another system?

REPLY of support here:

Well, we also know the code does not work on ITS Linux desktops (SuSe v.11).
So it's
not exactly an issue affecting a single system as suggested by Octave
support.
Also, they only tested on one configuration and we have failures on two
independent systems and across two Octave versions, so perhaps they are
drawing
conclusions prematurely.

For Octave support:

Francesca is running 64-bit SLES10 SP3 with kernel 2.6.16.60-0.69.1-smp. GCC
version is 4.1.2 and Octave was built with compiler options "-O3
-mfpmath=sse"
and linked against libbgsl and fftw3. 







Re: comment #8 of John, I get the same results indeed.  Again, I do not find
the problem with rem/mod to be system specific.




Many thanks again to both for your attention and help!  I really hope we are
able to sort out the cause of the blow-up (and not ` bad idea to sort out the
rem/mod business too).


Kody.





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