COUENNE with Julia

Sorry I am not following what is happening.
You are trying to use Baron now?
If it is not about Counne anymore I recommend a separate topic.

Also, you should start by making sure the Baron executable works fine and then try to use from JuMP.
You should probably follow Baron installation manual for that. I have no experience at all with Baron.
You might be talking about this: https://github.com/joehuchette/BARON.jl
Note that the latest version of JuMP does no support this.

Finally, what kind of problem class do you want to solve?
The solvers you are looking usually do not scale much.

I have a non convex nlp problem @joaquimg

Interesting, its pretty broad though. Feel free to open a new topic to continue the discussion!

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@joaquimg
can you provide me with useful links to integrate the couenne with julia
I downloaded the visual studio necessary file ā€¦ What next?

Hey,
The couenne .exe that you downloaded from AMPL webpage still does not work?
even after the Visual Studio files?

I tried to uninstall it and delete it, then download and install it again but now when I run the exe file, I do not get anything ā€¦ @joaquimg

What have you downloaded ? the binary or the source code and did you use this link for installation ?
https://github.com/ampl/coin/blob/master/Couenne/INSTALL

Open a cmd session. And call couenne from it.
It should display something.

@joaquimg
like that ?

Use the full path to the executbale.

sd
@joaquimg
this is what I get

Looks good. This should work thenā€¦

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o k
I will try now and tell you what happened

@joaquimg
I get error ā€œOptimizer not definedā€

run1

You need AmplNLWriter version 0.6. Try ] add AmplNLWriter@0.6.

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@odow
I tried this

Run ] rm CouenneNL Then run ] up.

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rm means to remove CouenneNL right ?
I ran the program now
however I got ā€œOTHER_ERRORā€ as a termination status

Yes.

the screen log should give you more info. My experience is that couenne is not super robust though.

so what do you recommend as robust solvers? @joaquimg