Re: [Help-glpk] restarting GLPK via a CPLEX LP file from the command line

[glpk xypron]

Hello Kevin,

see
http://en.wikibooks.org/wiki/GLPK/Steps_of_GMPL_File_Processing#Prescribed_starts

With glpsol you cannot specify a starting solution.

Using the library this is possible. Specify a callback function
in glp_iocp->cb_func when calling glp_intopt.

Provide the starting solution when glp_ios_reason returns
GLP_IHEUR for the first time.

Best regards

Xypron

-------- Original-Nachricht --------
> Datum: Sat, 05 Feb 2011 23:22:29 -0500
> Betreff: [Help-glpk] restarting GLPK via a CPLEX LP file from the command     
> line

> Hello List,
> 
> When invoked from the command line, I note that GLPK has options to shut 
> off the presolver (--nopresol, --nointopt).  Given the constraints that 
> I must use a CPLEX LP file to give GLPK my optimization problem, and 
> that I must run GLPK via the glpsol binary, is there a way to restart a 
> problem from an arbitrary solution?  How can I give glpsol a specific 
> basis from which to start an optimization?
> 
> Thanks,
> 
> Kevin
> 
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> Help-glpk mailing list
> address@hidden
> http://lists.gnu.org/mailman/listinfo/help-glpk

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