Hello Patrik did you use a single thread benchmark?
Best regards Heinrich Gesendet mit der kostenlosen GMX iPhone App Am 01.02.13 um 16:49 schrieb Patrik Dufresne > Hi Reginald, > > > > Here are the hardware specs i'm comparing. > > > > System 1 > > Windows XP SP2 > > Intel Core i5 650 @ 3.20GHz 4 MB Cache > > 3GiB DDR3 1066/1333 > > CPU mark (according to cpubenchmark.net) : 3154 > > Total computation time : 331 sec > > > > System 2 > > Windows XP SP2, Windows 7 64bits, Debian 64bits > > Core i7 CPU M 620 @ 2.67GHz 4M Cache > > 4GiB DDR3 1066 > > CPU mark (according to cpubenchmark.net) : 2718 > > Total computation time : 114 secs > > > > System 3 > > Windows XP SP2, Debian 64bits > > *Core 2 Duo CPU E6550 @ 2.33GHz **4 MB** Cache L2 > > *4GiB DDR2 800 > > CPU mark (according to cpubenchmark.net) : 1493 > > Total computation time : 172 secs > > > > I didn't run the benchmark on the computer it self, but the different > > between the number is big enough to expect better performance from System > > no 1 then System no 3. The total computation time of the problem on > > different platform for the same computer are almost identical. (less then > > 0.5 sec different). It's safe to assume the platform doesn't have any > > impact on the performance. > > > > I'm using GLPK 4.47 on every platform. On Linux, I did compile it from > > source with default flags. For Windows, I pick the pre-compiled version > > provided by winglpk project. > > > > To solve the problem, I need to run GLPK multiple time sequentially. I may > > provide dump of every instance of the problem. > > > > Patrik Dufresne > > > > On Fri, Feb 1, 2013 at 10:23 AM, Reginald Beardsley > <[email protected]>wrote: > > > > > Could you provide a few details? > > > > > > System configurations you're comparing? GLPK version? Compile time > > > options specified? > > > > > > There are a huge number of possibilities. Why do you think the computer > > > is "more powerful"? > > > > > > Reg > > > > > > > > > > > > --- On *Fri, 2/1/13, Patrik Dufresne <[email protected]>* wrote: > > > > > > > > > From: Patrik Dufresne <[email protected]> > > > Subject: [Help-glpk] Performance decrease with more powerful computer > > > To: "GLPK help" <[email protected]> > > > Date: Friday, February 1, 2013, 8:56 AM > > > > > > > > > Hi, > > > > > > I'm using GLPK in one project and the time taken to compute is longer on a > > > more powerful computer. Does it make any sense to you ? > > > > > > I don't have any clues about how to debug it. I would really appreciate > > > tips to diagnose the problem. > > > > > > Patrik Dufresne > > > > > > -----Inline Attachment Follows----- > > > > > > _______________________________________________ > > > Help-glpk mailing list > > > [email protected] <http://mc/[email protected]> > > > https://lists.gnu.org/mailman/listinfo/help-glpk > > > > > > > > > _______________________________________________ > > > Help-glpk mailing list > > > [email protected] > > > https://lists.gnu.org/mailman/listinfo/help-glpk > > > > > > > > _______________________________________________ > > Help-glpk mailing list > > [email protected] > > https://lists.gnu.org/mailman/listinfo/help-glpk _______________________________________________ Help-glpk mailing list [email protected] https://lists.gnu.org/mailman/listinfo/help-glpk
