Re: Infinite cycles

Dear Heinrich,

thank you very much. I downloaded it and compiled.

Now, I found another problematic test case in attachment.
The error appears different. The error disappears if --norelax
option is used, so it is fine by me.

Best wishes,

  Mathieu

On 12 January 2017 at 12:08, Heinrich Schuchardt <[email protected]> wrote:

> http://sourceforge.net/projects/noumenon/files/tmp/
> On 1/12/17, 10:31 Mathieu Dutour <[email protected]> wrote:
>>
>> Hi Heinrich,
>>
>> where can I access to GLPK 4.61 prerelease?
>> Also, is there a way to access to the source code
>> via SVN or GIT?
>>
>>   Mathieu
>>
>> On 11 January 2017 at 19:52, Heinrich Schuchardt <[email protected]>
>> 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
>>> >
>>> >
>>> > _______________________________________________
>>> > Help-glpk mailing list
>>> > [email protected]
>>> > https://lists.gnu.org/mailman/listinfo/help-glpk
>>> >
>>>
>>>
>>

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