Re: Infinite cycles

Andrew Makhorin <[email protected]>
Newsgroups gmane.comp.gnu.glpk
Message-ID <1484163295.5777.3.camel@corvax>
On Wed, 2017-01-11 at 19:52 +0100, Heinrich Schuchardt wrote:
> glpsol -m GLP_buggy.mod  --norelax
> runs fine.
> 
> glpsol -m GLP_buggy.mod
> loops for ever.
> 
> I tested with the GLPK 4.61 prerelease.
> 

Currently the primal simplex (used by default) is less numerically
stable that the dual simplex. Try

glpsol --dual ...

to choose the dual simplex. It may help (but only if you have glpk
4.60).
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