Re: [Help-glpk] Performance decrease with more powerful computer

[Henri Gourvest]

Hi,

As Jeffrey say:
"Sometimes small changes in numerics can make a big difference in how 
the branches of an MIP problem are explored"

The FPU Control Word directly impact how glpk will explore branches.
It can be different by thread. The default value is not the same if you 
are using visual studio, gcc or java ...
GLPK don't set the FPU control word.
http://msdn.microsoft.com/en-us/library/e9b52ceh(v=vs.80).aspx

henri

Le 01/02/2013 15:56, Patrik Dufresne a écrit :
> 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
>
>
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