Hi, May someone give me an explanation about why the same problem run with glpk 4.38 is faster then glpk 4.47 ?
GLPK Version Iteration Time used 4.37 6507 3.6 secs 4.38 6496 5.5 secs 4.39 23708 22.1 secs 4.40 23708 22.1 secs 4.41 23708 23.6 secs 4.42 45540 64.6 secs 4.43 45540 64.4 secs 4.44 45540 60.7 secs 4.45 45540 60.3 secs 4.46 45540 61.5 secs 4.47 45540 61.0 secs Run with ./glpsol --intopt --fpump --cpxlp min-all-swappable-task1 See my dropbox for all the results and the problem file https://www.dropbox.com/sh/ja2myngas5lorow/oUTkkFxW5N/glpk-438-vs439 Looking at the change log, the only related modification I see that may impact the number of iteration if the reimplementation of glp_read_lp(). Thanks for your comments. Patrik Dufresne
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