[Ipopt] Multiple TNLP Instances Segfault

[Breannan Smith]

Thanks for the input, I'll see about putting together an isolated test case
that recreates the issue.

Does this also hold for instances of IpoptApplication? That is, can one
create multiple instances of IpoptApplication in the same program and
safely execute them in serial?

Best regards,
Breannan Smith


On Wed, Mar 20, 2013 at 6:42 PM, Stefan Vigerske
<stefan at math.hu-berlin.de>wrote:

> Hi,
>
> that sounds like a bug to me.
> It would be good if you could open a ticket in the bugtracking system
> about this (login at https://projects.coin-or.org/**Ipopt<https://projects.coin-or.org/Ipopt>,
> then New Ticket), including some code snipets about what you tried. Best
> would be some code to reproduce the issue.
>
> Stefan
>
>
>
> On 03/20/2013 10:16 PM, Breannan Smith wrote:
>
>> Dear Ipopt Community,
>>
>> If I instantiate multiple TNLP instances (with smart pointers and the
>> IpoptApplicationFactory) that are executed in serial, my program
>> segfaults. These segfaults seem to go away if I instead create a new
>> instance of and subsequently delete each TNLP before running the next
>> one.
>>
>> Is this behavior expected even for TNLPs executed in serial? I have
>> seen warnings against executing multiple TNLPs in parallel, but not in
>> serial.
>>
>> Best regards,
>> Breannan Smith
>> smith at cs.columbia.edu
>> ______________________________**_________________
>> Ipopt mailing list
>> Ipopt at list.coin-or.org
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>>
>>
>
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