[Ipopt] Feature request: Output wall clock time per Iteration

[Stefan Vigerske]

Hi,

In the TNLP::intermediate_callback 
(https://coin-or.github.io/Ipopt/classIpopt_1_1TNLP.html#a2f962a4c43464adb7928771af84503d6), 
which is called for every iteration, a pointer to an IpData object is 
passed.
This one seems to give access to TimingStatistics
https://coin-or.github.io/Ipopt/classIpopt_1_1TimingStatistics.html
This might be able to give you the time since the algorithm started.
If you store this time, you should be able to get the time since the 
last call, i.e., the previous iteration.

Stefan

On 9/3/19 2:10 PM, Schmelting, Lukas wrote:
> Hello everyone,
> 
> 
> I would like to print the wall clock time per Iteration, or similar information like the passed time per iteration since starting the solver.
> 
> 
> Can someone point me to the file(s), which would need to be changed to achieve this? I am not the only person interested in this feature (see https://github.com/JuliaOpt/Ipopt.jl/issues/178#issuecomment-525538951)
> 
> 
> Kind regards,
> 
> lschmelting
> 
> 
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