[Ipopt] what should be the default value for neg_curv_test_tol

[Stefan Vigerske]

Hi,

I think the default value is just not allowed as possible value for that 
option, but there is no check that forbids this :-).
The options definition says, that the value has to be > 0, but I think 
we can just change this to >= 0.

Stefan

On 11/28/2014 04:07 PM, Tony Kelman wrote:
> Hi Fab,
>
>  From Ipopt/src/Algorithm/IpPDFullSpaceSolver.cpp line 87 (as of v3.11.9), it looks like the default is 0.0. It may be that you need to add a decimal when you specify the option, otherwise the options parser might be getting confused and thinking you’re trying to set an integer value? That’s just a guess though.
>
> -Tony
>
>
> From: Moncade, Fabrice
> Sent: Friday, November 28, 2014 6:54 AM
> To: ipopt at list.coin-or.org
> Subject: [Ipopt] what should be the default value for neg_curv_test_tol
>
>
>
>
> Dear all,
>
>
>
> Ipopt displays the following warning : Setting “0” is not a valid setting for Option: neg_curv_test_tol. Check the option documentation.
>
> Nonetheless, when I request Ipopt to print out the option documentation, I can see:  “neg_curv_test_tol                      0 <  (          0) <  +inf“
>
>
>
> I am confused, may someone tell me what is the default value for this option?
>
>
>
> Regards
>
> Fab.
>
>
>
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