[Dune] A problem in dune-grid

[Christian Engwer]

Dear Shim,

please always reply to the list...

If you could upload the file somewhere and send a link, would be perfect. Sending large files over the list is not the preferred way.

Best Christian

Am 27. September 2018 17:50:44 MESZ schrieb "Shim, Miseon" <shimm at umkc.edu>:
>
>Thank you Christian,
>
>
>>> If you construct/read a mesh, you can assign a boundary
>parametrization (the boundary segment) to each foundary face of the
>mesh. In your case UG reports, that you have roughly 8 times as many
>boundary segments as you have faces. This sound pretty much as if your
>mesh is already invalid.
>
>- Does your sentence mean that I should generate a new mesh model for
>UG computing?
>
>The mesh file is generated by tetgen program, and I used this file
>without modify as an input file for computing.
>
>Of course I'm able to provide mesh file to you.  Would I send the mesh
>file as attachment via email? Or is there other way to send the mesh
>file to you?
>
>
>Thanks again for your help.
>
>
>Best,
>
>
>SHIM, MISEON
>
>*
>Post-doctoral fellow
>Department of Psychiatry
>University of Missouri-Kansas City
>
>________________________________
>보낸 사람: Christian Engwer <christian.engwer at uni-muenster.de>
>보낸 날짜: 2018년 9월 25일 화요일 오후 5:13:52
>받는 사람: Shim, Miseon
>참조: dune at lists.dune-project.org
>제목: Re: [Dune] A problem in dune-grid
>
>Hi Shim,
>
>welcome to dune :-)
>
>On Tue, Sep 25, 2018 at 08:50:56PM +0000, Shim, Miseon wrote:
>> Dear All,
>>
>> I hope you are doing well!
>>
>>
>> A problem was occurred when I used dune-grid via duneuro-py. The
>error message is as follows:
>>
>>
>> RuntimeError: GridError
>[createGrid:/Dune/dune-grid/dune/grid/uggrid/uggridfactory.cc:275]: You
>have supplied 868420 parametrized boundary segments, but the coarse
>grid has only 119990 boundary faces!
>>
>> What is the meaning of this error?
>
>If you construct/read a mesh, you can assign a boundary
>parametrization (the boundary segment) to each foundary face of the
>mesh. In your case UG reports, that you have roughly 8 times as many
>boundary segments as you have faces. This sound pretty much as if your
>mesh is already invalid.
>
>- Are you reading a gmsh file? Or how are you constructing the mesh?
>- Can you provide the mesh file (or a minimal example)?
>
>> Is there a limitation for the number of boundary segments?
>
>If I remember UGGrid correctly, there is a limitation, but this is not
>your problem here and I doubt that you will hit this limit.
>
>> Should I reduce the number of segments?
>
>Does this mean that you manually specify the segments?
>
>Best
>Christian
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