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[Help-glpk] [Fwd: Glpsol Changing Tolerance]

From: Andrew Makhorin
Subject: [Help-glpk] [Fwd: Glpsol Changing Tolerance]
Date: Thu, 11 Jul 2013 22:29:45 +0400

-------- Forwarded Message --------
From: Chris Tervo <address@hidden>
Reply-to: Chris Tervo <address@hidden>
To: address@hidden
Subject: Glpsol Changing Tolerance
Date: Thu, 11 Jul 2013 12:05:01 -0500

To whom it may concern,

I'm having a problem with using glpsol to solve an MIP problem using the
default tolerances. Using the MIP variant of my problem glpsol find an
integral optimal solution; however when I take that solution and solve
the problem again with the integer variables converted to parameters the
solution is vastly different. I have had this issue before with
commercial solvers and have solved it by tightening the integrality
tolerance to 0. Unfortunately I cannot determine a way to do this with
glpsol. Any assistance would be appreciated.


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