Hi Andrew,

> Looks like your instance is maximization while mps always assumes
> minimization. You need either to change the objective sign in the
> mathprog model or specify --max option for glpsol.

I don't understand this statement.  Where do you "specify -max option
for glpsol"?

e.g. glpsol --math TimberHarvestModel_0025p.mod --wfreemps
TimberHarvestM_freemps.mps

The objective function of the MatProg model is already maximize.

e.g.

maximize Discounted_Net_Value:
    sum {s in STAND, p in PERIOD} Stand_Cut_Candidates[s,p] *
NPV_Calc[s,p] * FStand[s,p];

Noli

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