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Re: [Help-glpk] sensitivity analysis table in glpk

From: Andrew Makhorin
Subject: Re: [Help-glpk] sensitivity analysis table in glpk
Date: Sat, 26 Dec 2009 11:04:22 +0300

> This is a scaling/tolerance issue, i.e. glp_simplex reports that
> the status is optimal, but glp_warm_up does not agree with that.

> Please replace line 70, file glplpx03.c:

>       lpx_warm_up(lp);

> by the following line:

>       glp_factorize(lp);

> This must help.

> (I will try to re-implement lpx_print_sens_bnds using new api
> routines.)

Another way is just disable the lp presolver (--nopresol).

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