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Re: [Help-glpk] RE: Time Limit Didn't Work On Tournament Model

From: Ali Baharev
Subject: Re: [Help-glpk] RE: Time Limit Didn't Work On Tournament Model
Date: Sat, 12 Sep 2009 15:39:00 +0200

> Another interesting thing is that, using EXACTLY the same parameters, the
> compilation of glpsol 4.9 I downloaded from
> is unable to get the gap below 4.6% (the optimum is 0%), whereas it seems to
> solve fairly easily in the GUSEK 0.2 Windows IDE. This is exactly the
> opposite to another problem I have also been working on, in which I used
> GUSEK for development only because it took around 5x longer to resolve in
> that program.

It is probably because GUSEK uses a more recent version of GLPK than
4.9 and the newer versions implement cut generations.

Try enabling / disabling cut generation, it may lead to significant
differences in the computation time.

Good luck,


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