How can view a separated mesh after separation

peterhess · November 24, 2017, 01:07

Hello everybody!

I hope that I am asking my question in the right place...

Well, I have a simulation with large number of cells and I want to calculate my simulation in parallel.

Steps made are:

- blockMesh
- snappyMesh
- decomposePar (lets say on 2 processors)
- paraFoam: for viewing the mesh

My challange is how to view the cells that belong to every processor separately in paraView?

I want to see which cells belong to which processor!

Is that possible at all?

paraFoam reads the mesh generated by snappyMesh as one block and ignores the separation.

Any suggestions?

Thanks for every help

Peter

alexeym · November 24, 2017, 16:35

Hi,

After decomposition, in general you have processor* folders, which contain mesh and fields for given processor (i.e. partial case). So you can do something like:

Code:

$ for i in processor*; do cd $i && touch $i.foam && cd ..; done

Then open these files in paraview and use different colours for every file.

peterhess · November 24, 2017, 17:44

Hello alexeym!

Thanks a lot for the Answer.

That is exactly what I want.

It works.

Regards

Peter

November 24, 2017, 01:07	How can view a separated mesh after separation	#1
peterhess Senior Member Peter Hess Join Date: Apr 2011 Location: Austria Posts: 250 Rep Power: 17	Hello everybody! I hope that I am asking my question in the right place... Well, I have a simulation with large number of cells and I want to calculate my simulation in parallel. Steps made are: - blockMesh - snappyMesh - decomposePar (lets say on 2 processors) - paraFoam: for viewing the mesh My challange is how to view the cells that belong to every processor separately in paraView? I want to see which cells belong to which processor! Is that possible at all? paraFoam reads the mesh generated by snappyMesh as one block and ignores the separation. Any suggestions? Thanks for every help Peter Last edited by peterhess; November 24, 2017 at 17:35.

November 24, 2017, 16:35		#2
alexeym Senior Member Alexey Matveichev Join Date: Aug 2011 Location: Nancy, France Posts: 1,930 Rep Power: 38	Hi, After decomposition, in general you have processor* folders, which contain mesh and fields for given processor (i.e. partial case). So you can do something like: Code: $ for i in processor*; do cd $i && touch $i.foam && cd ..; done Then open these files in paraview and use different colours for every file.

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November 24, 2017, 17:44		#3
peterhess Senior Member Peter Hess Join Date: Apr 2011 Location: Austria Posts: 250 Rep Power: 17	Hello alexeym! Thanks a lot for the Answer. That is exactly what I want. It works. Regards Peter