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[Bug-glpk] Re: display bug with glpk

From: Andrew Makhorin
Subject: [Bug-glpk] Re: display bug with glpk
Date: Thu, 18 Mar 2010 14:15:16 +0300

> At first, I want to explain that I'm a french student and I
> apologize if my english is bad, and I'll try to explain clearly my
> problem.

> As part of my PhD, I'm using the glpk routines to solve linear
> programming problems, with programs in language C running under Linux
> terminal.

> I was using glpk 4.25 and I've just updated to glpk 4.35 and with
> this release, the function  "glp_term_out" with the option "GLP_OFF"
> seems to not work.

> While running program with this option, I get no error message but
> the program seems to be in "pause" on this step; though I was using
> this option with glpk 4.25 without problem.

> Is there a known problem with this function ?

Hmm... Glp_term_out must work. If you disable the terminal output and
then call glp_simplex, it may happen that the simplex solver is stalling
due to degeneracy, however, you cannot see that. Try to enable the
terminal output to make sure that glp_simplex is not stalling.

(Please note that the most recent version of glpk is 4.43.)

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