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
___
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 wrote:
From: Patrik Dufresne
Su
Hi Patrik,
It's hard to make sense of this without a bit more detail regarding
software used, the problem type, etc.
Sometimes small changes in numerics can make a big difference in how the
branches of an MIP problem are explored. But without additional info it is
foolish to speculate.
Jeff
On
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 @
Hello Patrik
did you use a single thread benchmark?
Best regards
Heinrich
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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 @ 3.20
Looking at the descriptions I think you're thrashing. Add more memory to
system 1, unless of course there's a typo and that should read "32GiB" instead
of "3GiB"
--- On Fri, 2/1/13, Patrik Dufresne wrote:
From: Patrik Dufresne
Subject: Re: [Help-glpk] Performance decrease with more powerful
Hi,
I don't believe the memory to be in cause. The problem is solved using 25Mb
according to glpsol.
I've made the problems to be solved available on my dropbox:
https://www.dropbox.com/sh/ja2myngas5lorow/FEtqJuklmI/assigments-mip.tar.gz
Patrik Dufresne
On Fri, Feb 1, 2013 at 11:15 AM, Reginald
