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[Help-glpk] Fwd: Re: Infinite cycles
From: |
Heinrich Schuchardt |
Subject: |
[Help-glpk] Fwd: Re: Infinite cycles |
Date: |
Mon, 16 Jan 2017 23:01:52 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Icedove/45.4.0 |
Hello Andrew,
the interesting thing about Matheu's example is that the infeasability
is constantly increasing over multiple orders of magnitude.
Somewhere the restart is missing.
Best regards
Heinrich Schuchardt
-------- Forwarded Message --------
Subject: Re: [Help-glpk] Infinite cycles
Date: Mon, 16 Jan 2017 18:02:00 +0100
To: Heinrich Schuchardt <address@hidden>
CC: Help Glpk <address@hidden>
Dear Heinrich,
in attachment you can find a problem that runs into
infinite loops for
glpsol -m GLP_buggy_6d21.mod --norelax
and GLPSOL being version 4.61
Mathieu
On 11 January 2017 at 19:52, Heinrich Schuchardt <address@hidden
<mailto:address@hidden>> 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.
Best regards
Heinrich Schuchardt
On 01/11/2017 12:14 PM, Mathieu Dutour wrote:
> Dear all,
>
> I obtained some infinite cycles when running the
> glpsol standalone solver on some instances.
> See two files in attachment.
>
> I had the instances of this phenomenon with
> version 4.57 which disappeared with version 4.60.
>
> Is there a way to avoid this phenomenon? I mean
> it is fully acceptable to me to have GLPK report
> that he cannot solve an instance due to numerical
> instability. What is not acceptable is the infinite
> cycles.
>
> Thanks in advance for any help.
> Sincerely,
>
> Mathieu
>
>
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GLP_buggy_6d21.mod
Description: audio/mod
- [Help-glpk] Infinite cycles, Mathieu Dutour, 2017/01/11
- Re: [Help-glpk] Infinite cycles, Heinrich Schuchardt, 2017/01/11
- Re: [Help-glpk] Infinite cycles, Andrew Makhorin, 2017/01/11
- Re: [Help-glpk] Infinite cycles, Mathieu Dutour, 2017/01/12
- Re: [Help-glpk] Infinite cycles, Mathieu Dutour, 2017/01/16
- [Help-glpk] Fwd: Re: Infinite cycles,
Heinrich Schuchardt <=
- Re: [Help-glpk] Fwd: Re: Infinite cycles, Andrew Makhorin, 2017/01/16
- Re: [Help-glpk] Fwd: Re: Infinite cycles, Heinrich Schuchardt, 2017/01/16
- Re: [Help-glpk] Fwd: Re: Infinite cycles, Mathieu Dutour, 2017/01/17
- Re: [Help-glpk] Fwd: Re: Infinite cycles, Andrew Makhorin, 2017/01/17
- Re: [Help-glpk] Fwd: Re: Infinite cycles, Mathieu Dutour, 2017/01/17