Hello, I want to make some successive lp optimizations where only second member of some constraints change. So my idea was to solve the first lp problem, to save the basis corresponding to the optimal solution and then to use this basis when solving the others problem (in order to greatly speed up the optimization process).
I did not find which method used for reading/writing .bas file so I tried calling only warmup method between two optimizations. It seems to have no effect because the output always specify that it constructs initial basis even when using warmup. Finally I switched off presolve and it worked ! So my question is : is it possible to use presolve (which is great to decrease the size of lp problems) AND warmup ? Besides, in the java implementation of glpk, I found readBas and writeBas method, is there an equivalent in the native glpk API ? Best regards. Nicolas GDF SUEZ Mail Disclaimer: http://www.gdfsuez.com/disclaimer/disclaimer-fr.html _______________________________________________ Help-glpk mailing list [email protected] https://lists.gnu.org/mailman/listinfo/help-glpk
