Re: [Help-glpk] Results in the iteration in JAVA GLPK (MIP Cutting Stock Problem)

[glpk xypron]

Hello Ramón,

> 1. How can I see all the results in each iteration?
the different solutions during the solution of MIP problems
can be observed using a callback function.

GLPK for Windows 4.45 and GLPK Java 1.0.16 contain
examples/java/GmplSwing.java

https://glpk-java.svn.sourceforge.net/svnroot/glpk-java/tags/glpk-java-1.0.16/examples/java/GmplSwing.java

This example implements interface GlpkCallbackListener.

For details see glpk-4.45/doc/glpk.pdf:
"Chapter 5 - Branch-and-Cut API Routines"

> can limit the number of iterations, obviously to see all or some of the
> possibilities?
You can limit the runtime or the gap. See glpk-4.45/doc/glpk.pdf

Look for
glp_ioc-mip_gap
glp_ioc-tm_lim
in chapter "2.9.5 glp intopt".

Best regards

Xypron



-------- Original-Nachricht --------
> Datum: Fri, 10 Dec 2010 08:55:29 -0500
> Betreff: [Help-glpk] Results in the iteration in JAVA GLPK (MIP Cutting       
> Stock Problem)

> Greetings Xypron.
> First Xypron, thank you for all your help in my proyect.
> I have two questions.
> 1. How can I see all the results in each iteration?
> 2. (Maybe) this question has a relation with the first one, is there a way
> I
> can limit the number of iterations, obviously to see all or some of the
> possibilities?
> Merry Christmas to you and all the comunity and again thanks.
> Ramón.

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