[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Help-glpk] Setting Up Gap Tolerance in Gusek

From: Pietro Scionti
Subject: Re: [Help-glpk] Setting Up Gap Tolerance in Gusek
Date: Thu, 8 Apr 2010 00:12:42 -0700 (PDT)

Seung Mo Gu wrote:
> Oh, so I guess then there really is no "gap" per say. I was
> comparing my current best bound with the lp relaxation objective value.
> Thank you for clearing this up. It turns out the code at the time still
> had no feasible solution even after running for 60 hours. 
> After modifying my model a bit, a few feasible solutions were found. I
> guess the question remains how one would go about accepting the current
> best solution when a certain gap is achieved. There seems to be many
> references made to glp_intopt but as I am new to GLPK/GUSEK I am confused
> on how to do this. 

try using the option --mipgap 5 (or --mipgap 0.05, I don't remember) in the
parameters; the corresponding routine in the reference manual is
glp_ios_mip_gap. To open the parameters tab in GUSEK press Shift+F8 or click
View / Parameters.
View this message in context:
Sent from the Gnu - GLPK - Help mailing list archive at

reply via email to

[Prev in Thread] Current Thread [Next in Thread]