Hi, Marc. This topic make me test some models with distinct builds of GLPK: http://lists.gnu.org/archive/html/help-glpk/2008-11/msg00026.html
In 2 "good" machines (AMD Athlon64 2.200MHz, 2Gb DDR-400 / Intel Core 2 Duo 2x 2133 MHz, 2Gb DDR2-667), just replacing the glpsol.exe (all parameters still the same, i'm using all cuts), VS2008 build (from http://winglpk.sourceforge.net) cannot beat MinGW in all my tests. Off course, simple models are solved instantaneously, but on some of my huge problems i can see times like 80s vs 270s, for example. Maybe we can make a lot of tests and summarize it (using different machines, some different models from MIPLIB 2003) to be a "pointer" to users make a choice. Just a pointer, not "the answer to all problems". Look, maybe a transportation problem in amd processor run faster with VS2008 build, but a plan scheduling in a intel run better with MinGW build (or not?). Best Regards, Luiz Em 6/12/2008 04:11, Meketon, Marc escreveu: > Luis, > > I am curious that your MinGW execution times are so much faster than > the VS2008 times. Would you know if the various optimization > parameters are turned on for VS2008? > > -Marc >> >> I didn't use the VS2008 build 'cause it is much slower then MinGW >> build. On all my tests with several models in GMPL, the MinGW version >> take less than a half of VS2008 version time... _______________________________________________ Help-glpk mailing list Help-glpk@gnu.org http://lists.gnu.org/mailman/listinfo/help-glpk
