qp() in octave-3.0.0 gets stuck on wrong answer to convex problem

Joshua Redstone redstone at gmail.com
Tue Jun 10 09:35:53 CDT 2008


Just checked, and the file I sent reproduces the problem on my Ubuntu 8.04
machine as well.
Josh

On Fri, Jun 6, 2008 at 4:03 PM, Joshua Redstone <redstone at gmail.com> wrote:

> Hi Gabriele, Thanks for looking into this!
> Yes, you're right, thanks for the clarification - I meant 'converge' in the
> sense that the value of OBJ does
> not seem to change as the maximum number of iterations increases.
> If the data file I attached to the bug post doesn't work for you, I'll be
> back in front of a linux box next Tuesday and can
> generate a more linux-friendly example for you.
> Thanks,
> Josh
>
> On Fri, Jun 6, 2008 at 2:43 PM, Gabriele Pannocchia <
> g.pannocchia at ing.unipi.it> wrote:
>
>> Hi all,
>>
>> I will look into Josh's example ASAP to see if I can reproduce the
>> problem and possibly understand why that happens.
>>
>> > I just tried octave 3.0.1 (osx) - the behavior is identical (i.e., it
>> > converges to the wrong answer).
>>
>> Just a clarification: if you get INFO=3, it means that the maximum
>> number of iterations has been reached. Thus, it is not correct to say
>> that it converges to the wrong answer.
>>
>> Gabriele
>>
>>
>>
>>
>
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