> > PS: glpsol managed to solve neos13 to optimality (for about 12 mins on
> > my Intel Celeron 2.5 GHz):
> 
> Have you tried with the patch for faster MIR cut generation? 

Not yet.

> neos13
> solves considerably quicker without cuts, 

Yes, without cuts it's five times faster, probably because neos13 is not
hard. But I used it to test root node processing.

> but this patch helps to a
> large degree.
> 



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