[Help-glpk] Infinite cycles

[Mathieu Dutour]

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

GLP.mod
Description: audio/mod

GLP_buggy.mod
Description: audio/mod