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Re: [Help-glpk] control parameters and round-off error
From: |
Michael Hennebry |
Subject: |
Re: [Help-glpk] control parameters and round-off error |
Date: |
Mon, 14 Jan 2008 17:33:00 -0600 (CST) |
On Mon, 14 Jan 2008, Ali Baharev wrote:
> I faced the following problem. I repeatedly call glp_simplex on the
> same lp object (only continuous variables) after manipulating the
> objective function. The objective function value i get seems to be a
> bit inaccurate (say the third digit seems to be incorrect). As the
> computation involves several thousand iterations, probably this is due
> to the accumulation of round-off errors. I always check the returned
> value of glp_get_status and it is GLP_OPT.
How do you know that the objective is inaccurate?
Another solver?
Mathematical analysis?
Something else?
--
Michael address@hidden
"Those parts of the system that you can hit with a hammer (not advised)
are called Hardware; those program instructions that you can only
curse at are called Software."