[Help-glpk] Re: a mistake with thinking

[glpk xypron]

> one more question: 
> 
> is it possible to pass an array-solution x[i,j,t] (defined as variable) to
> an another GLPSOL script and use it as a param-array ?

GLPSOL cannot use an initial solution. It is possible using the GLPK API:

Create a callback routine. Pass it as parm.cb_func to glp_intopt.
In the callback routine react to the first call
with reason GLP_IHEUR as follows:
- Preset the integer variables in tree->mip.
- Initialize parameters: glp_init_smcp(&parm);
- Set parameters: parm.meth = GLP_DUALP;
- Solve the LP: ret = glp_simplex(tree->mip, &parm);
- Pass all variables with a call to glp_ios_heur_sol.

Best regards

Xypron
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