[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

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

From: Henri Gourvest
Subject: Re: [Help-glpk] Performance decrease with more powerful computer
Date: Sat, 02 Feb 2013 12:34:18 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130106 Thunderbird/17.0.2


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.


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

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

Help-glpk mailing list

reply via email to

[Prev in Thread] Current Thread [Next in Thread]