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Re: [Help-glpk] Creating variables

From: Andrew Makhorin
Subject: Re: [Help-glpk] Creating variables
Date: Fri, 2 Apr 2010 10:41:07 +0400

> So if any variables I generate, that don #39;t exist in any of the
> constraint or objective, will not be stored in memory?

Yes. Every elemental variable is created only if it is actually
referenced somewhere in the model. For example, if a model has the
following statements:

   var x{1..1000};
   s.t. foo: x[5] + x[10] >= 3;

only two elemental variables x[5] and x[10] will be generated.

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