Topic: display poofem result

hi~
I use oofem to make a simple test about structural static mechanics.
When I use OOFEM for serial solving,I got a vtk file.Then I open the vtk file in Paraview.
https://user-images.githubusercontent.c … 5e1021.png
Then I use oofem2part.py to divide the input file into 4 part.I run oofem again.
run this command mpirun -np 4 ./oofem -p -f ~/PATH/TO/IUNPUT FILE
I got 4 vtk files.Then I open those files in Paraview again.But I didn't get the same picture result
https://user-images.githubusercontent.c … 5e1021.png
So what should I do?How should I get the same result?

The result file follow:
result.zip

would you please help me? Thank you very much!

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result.zip 1.51 mb, 3 downloads since 2018-11-29 

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2

Re: display poofem result

HI,
in principle it should yield the same results. However, oofem2part has some limitations, for example it does not support sets at the moment. So if you have applied BC via sets, it will not produce valid parallel inputs. The large displacements you have obtained in parallel case suggest that.
I can get more info on that, but need input file. Could you attach it as well?
Borek

Re: display poofem result

Thank you for your help
OK,I didn't use set in my input file.
Now I attach my input file.

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inputfile.zip 43.19 kb, 1 downloads since 2018-11-30 

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Re: display poofem result

Hi,would you please look at my input file and give me help?
I use salome create a simple cuboid,and generate the mesh in salome,final export the .unv file
In OOFEM, I use unv2oofem.py firstly,then I use oofem2part to generate 4 sub-input files.
Thank you

5

Re: display poofem result

Hi,
In your parallel input files you have to change the linear solver to parallel one. As you don't set anything related to linear solver used, the default one is used (serial one) which solves each partition independently as a separate structure and the solution fails.
To fix the problem, edit problem record in parallel input file to

StaticStructural nsteps 1 nmodules 1 smtype 7 lstype 3

The smtype 7 lstype 3 will select petsc solver and compatible sparse storage. For details, please refer to Input manual (http://www.oofem.org/resources/doc/oofe … ode51.html)

Borek

Re: display poofem result

oh~great!
I was too careless!
Thank you !!!