Re: [Help-glpk] Continuing search after time-out

[xypron]

Hello Pavel,

the glpk C library comes with hook functions that allow you to trace every 
integer solution found. See doc/glpk.pdf.

In glpk-java  I have not implemented the hook functions yet.
http://glpk-java.sourceforge.net

Best regards

Xypron


Pavel Klinov-3 wrote:
> 
> Hello,
> 
> If B&C search gets interrupted due to time-out and but then is run
> again, does it start from scratch or is it able to continue from where
> it stopped? Is there a way for it to store all the internal data
> structures and continue?
> 
> Basically I want GLPK MIP solver  to give me the first "acceptable"
> solution because sometimes it spends a lot of time searching "near"
> the optimal one (as far as I see in the output). I guess the easiest
> would be to use the callback function but this seems problematic since
> I'm invoking GLPK via JNI (by using SWIG wrapper classes). Therefore I
> set a time limit and then check if some solution has been found. If
> not, I'd like to continue the search.
> 
> Thanks,
> Pavel
> 
> -- 
> cheers,
> --pavel
> http://www.cs.man.ac.uk/~klinovp
> 
> 
> _______________________________________________
> Help-glpk mailing list
> address@hidden
> http://lists.gnu.org/mailman/listinfo/help-glpk
> 
> 

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