> I've using GLPK to model and solve a linear problem for quite a while. > According to this mailing list, I'm lucky to have it solved using > GLPK. The only reason why it's so quick to solve it if the Fpump. > > > Recently, I've change the way I model the problem to satisfy a new > business need and it's just taking for ever. Looking at the log, I see > "FPUMP heuristic cannot be applied due to general integer variables". > Correct me if I'm wrong, fpump can't be enabled because I've introduce > an integer variable ? >
Unfortunately, yes. Current implementation of the fpump heuristic is not able to process general integer variables. However, you may try to specify --binarize option to tell the mip preprocessor to replace general integers by equivalent linear combinations of binary variables. _______________________________________________ Help-glpk mailing list [email protected] https://lists.gnu.org/mailman/listinfo/help-glpk
