[Ipopt] C++ interface and .nl files

[Ian Washington]

My mistake. Good to know.

Ian.


On 01/27/2016 01:06 PM, Anthony D. Kelman wrote:
> Ipopt has a command line driver that uses ASL to load .nl files, adapting
> that same code into a C++ library wouldn't be hard.
> 
> Or you can look at https://github.com/ampl/mp which also contains a more
> modern C++ NL reader (the classic ASL is in C).
> On Jan 27, 2016 10:02 AM, "Horand Gassmann" <Horand.Gassmann at dal.ca> wrote:
> 
>> This is actually not true. David Gay made available and maintains the AMPL
>> Solver Library ASL, which can be downloaded from COIN-OR. The OS project
>> has an interface to Ipopt that uses ASL and provides support for .nl files,
>> even if Ipopt does not do so directly.
>>
>> -------------------------------------------------------
>>
>> Horand I. Gassmann, Professor
>>
>> Kenneth C. Rowe School of Business, Dalhousie University
>> 6100 University Avenue, PO Box 15000
>> Halifax, Nova Scotia, Canada, B3H 4R2
>> ph. (902) 494-1844
>> fax (902) 494-1107
>>
>> http://myweb.dal.ca/gassmann/
>> ________________________________________
>> From: Ipopt [ipopt-bounces at coin-or.org] on behalf of Ian Washington [
>> washinid at mcmaster.ca]
>> Sent: January-27-16 1:58 PM
>> To: ipopt at list.coin-or.org
>> Subject: Re: [Ipopt] C++ interface and .nl files
>>
>> Short answer is NO.
>>
>> You should look into modeling tools like Pyomo or Casadi. You can find
>> examples in each respective package.
>>
>> Ian.
>>
>>
>> On 01/27/2016 09:54 AM, Gianpaolo Gulletta wrote:
>>> Hi ,
>>>
>>> I have Ipopt 3.12.4 and I would like to know if there is the possibility
>>> to read a .nl file through c++ code and solve the problem.
>>> As far as I know there are not examples about it, therefore I would
>>> really appreciate a example code to understand how it works.
>>>
>>> Thank you very much.
>>>
>>> Best Regards,
>>>
>>
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>