Re: [Help-glpk] glpk -> coin-or -> gams -> neos server

[glpk xypron]

Hello Andrew,

COIN is patching GLPK as described in 
https://projects.coin-or.org/svn/BuildTools/ThirdParty/Glpk/releases/1.4.3/glpk.patch

In glpios03.c and glpapi08.c the idea is that if the relative gap tolerance is 
reached it does not make sense to signal a timeout (GLP_ETMLIM).  Reaching the 
desired gap signals a valid (desired) solution. Reaching timeout typically 
signals an invalid solution. Hence I guess this change could be moved to the 
GLPK package.

As lpx_simplex has been replaced by glp_simplex the change in glplpx01.c to 
correctly signal an invalid base seems reasonable but not necessary.

Best regards

Xypron


-------- Original-Nachricht --------
> Datum: Sat, 20 Sep 2008 17:54:43 +0400
> Von: Andrew Makhorin <address@hidden>
> An: address@hidden
> Betreff: [Help-glpk] glpk -> coin-or -> gams -> neos server

> Just for information:
> 
> The NEOS Server offers Glpk, the GNU Linear Programming Kit, for the
> solution of integer programming problems that can be modeled in GAMS
> format through the COIN-OR/GAMSlinks project.
> 
> http://neos.mcs.anl.gov/neos/solvers/milp:Glpk/GAMS.html
> 
> 
> 
> _______________________________________________
> Help-glpk mailing list
> address@hidden
> http://lists.gnu.org/mailman/listinfo/help-glpk

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