[Gmsh] Gmsh crashed when refine the mesh

Christophe Geuzaine cgeuzaine at ulg.ac.be
Fri Jan 17 11:15:12 CET 2014

On 17 Jan 2014, at 03:29, Ziyu ZHANG <buaazhangziyu at gmail.com> wrote:

> Dear Gmsh team,
> I have got the attached GEO file and POS file to get a refined mesh. But when I type 
> gmsh It3xxx.geo -3 -bgm It3003.pos -o It3004.msh
> Gmsh crashes with errors saying "faces intersect" and "element has two identical points" ect... I searched previous questions and someone says it is because some characteristic length is too small. However, I am not sure this is true in my case. Could you please take a look and give some advice?

Dear Ziyu,

Thanks for the report: this was caused by a badly chosen tolerance when the background field mesh is not connected. Give tomorrow's nightly build a try: it should fix the problem.


> Best,
> Ziyu
> -- 
> Ziyu ZHANG 張子瑜
> PhD Student
> Duke Computational Mechanics Laboratory
> Department of Civil & Environmental Engineering
> Duke University
> Office: 919-660-5031
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Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science