[Ipopt] print_level and output_file options

Stefan Vigerske stefan at math.hu-berlin.de
Thu Oct 29 11:28:05 EDT 2015


instead of using the output_file option, you could use the
IpoptApplication::OpenOutputFile() method:

That should enable additional writing of output to a file of the given name.


On 10/15/2015 08:53 PM, Brad Bell wrote:
> I have a multi-level optimization problem. Each time I evaluate the
> object for the output problem, the inner problem must be solved.
> Sometimes (for very simple test cases) I wish to trace both the inner
> and output problems in separate files.  The Ipopt documentation contains
> the following text:
> output file:
> File name of desired output file (leave unset for no file output). NOTE:
> This option only works when read from the ipopt.opt options file! ...
> Is it possible to set a different output file for this inner and outer
> problem without using the options file; i.e., using the C++ interface
> for setting options ?
> _______________________________________________
> Ipopt mailing list
> Ipopt at list.coin-or.org
> http://list.coin-or.org/mailman/listinfo/ipopt


More information about the Ipopt mailing list