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## [Fwd: Re: Solver performance solving examples/life_goe.mod]

**From**: |
Andrew Makhorin |

**Subject**: |
[Fwd: Re: Solver performance solving examples/life_goe.mod] |

**Date**: |
Sat, 26 Sep 2020 18:26:42 +0300 |

-------- Forwarded Message --------
From: Jeffrey Kantor <jeff.kantor@gmail.com>
To: Chris Matrakidis <cmatraki@gmail.com>
Cc: Domingo Alvarez Duarte <mingodad@gmail.com>, help-glpk@gnu.org <help
-glpk@gnu.org>
Subject: Re: Solver performance solving examples/life_goe.mod
Date: Sat, 26 Sep 2020 10:23:18 -0400
>* Will there be a point where the GLPK package will be opened for*
>* collaborative development using, say, GitHub?*
>* *
>* > On Sep 26, 2020, at 10:20 AM, Chris Matrakidis <cmatraki@gmail.com>*
>* > wrote:*
>* > *
>* > I made some performance improving patches a few years ago. You can*
>* > find them in: https://github.com/cmatraki/GLPK*
>* > *
>* > Best Regards,*
>* > *
>* > Chris Matrakidis*
>* > *
>* > On Sat, 26 Sep 2020 at 14:54, Domingo Alvarez Duarte <mingodad@gmail*
>* > .com> wrote:*
>* > > Hello !*
>* > > *
>* > > Testing GLPK I left it solving examples/lie_goe.mod for more than*
>* > > 2 *
>* > > hours and it didn't found a solution (wasm and native) then I*
>* > > stopped *
>* > > then and tried with cplex/gurobi/xpress/scip all of then gives a *
>* > > solution instantly (except scip that takes 3s).*
>* > > *
>* > > The difference is so big, have someone managed through command*
>* > > line *
>* > > options or other means managed to get a solution quickly with*
>* > > glpsol ?*
>* > > *
>* > > Any idea of how to improve GLPK to not be so behind ?*
>* > > *
>* > > Cheers !*
>* > > *
>* > > *
>* > > *
>* *
>* *

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**[Fwd: Re: Solver performance solving examples/life_goe.mod]**,
*Andrew Makhorin* **<=**