[Coin-ipopt] IPOPT bug: IpoptException in file "IpRestoMinC_1Nrm.cpp" at line 188

[Andreas Waechter]

Hi Rodrigo,

After our off-line discussion, we now fixed the problem, and I submitted
the changes to the repository (in trunk), so that the new code will be in
tomorrow's tarball.

Now, Ipopt should not interrupt an AMPL script when it fails, and it
should also set the solve_return and solver_return_num variables properly.

Thanks again for letting us know and for testing the new change.

Regards,

Andreas

On Sat, 3 Dec 2005, [ISO-8859-1] Rodrigo López Negrete de la Fuente wrote:

> I've sent this message before, but I still haven't got an answer. I guess
> the other messages got confused with previous issues I had sent. Anyway,
> here it goes again in hope to get some help.
>
> I'm using IPOPT via AMPL where I write a script that executes de solve
> command, and after it writes a data output file. With this new version
> (version 3.0.0) when it reaches the maximum number of iterations IPOPT exits
> with code 'exit code 4294967295', and AMPL doesn't execute the rest of the
> lines in my script. This didn't happen with the fortran version (i.e.,
> v2.2.0).
>
> Is this normal behaviour, or maybe a bug? I should notice that when it gets
> an opimal solution this does not happen, all the lines in the script get
> executed.
>
> Exception of type: IpoptException in file "IpRestoMinC_1Nrm.cpp" at line
> 188:
>  Exception message: Maximal number of iterations exceeded in restoration
> phase.
> exit code 4294967196
> <BREAK>
>
> Let me point out that I compiled it in widows via Cygwin and gcc. To do so,
> I followed the instructions in the site.
>
> Thanks again,
>  Rodrigo.
> --
> Rodrigo López Negrete
> http://muon.blogdns.org/~rush/
>