[MOAB-dev] mixed mesh question

[Iulian Grindeanu]

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Hello again and thanks for the quick reply! 


I have been able to find a bug with my code (the one that loaded data to h5m) and seems to be fine for mixed meshes. I have used the mbsize -ll trick and understood the fault, thanks Iulian! 
The h5mvalidade tool still complains but I can see past that. 


OK, thanks for reporting it. Something is not right :( 

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The attached file is the one that seems to work for me now (naca0012 airfoil with 6910 tris + 17 quads, no parallel partitions, 2d_naca0012_mixed.h5m). 

I also use METIS to partition my mesh and then push the PARALLEL_PARTITION tag/set data to h5m. It works ok for homogeneous mesh but I have problems with mixed meshes. I am looking into it right now. If I can figure out what I am doing wrong with mixed elements (actually multiple ranges) I'll let you know. I used the mbZoltan.cpp code to base my implementation on the parallel data creation. 

</blockquote>
can you try something like: 
mbpart 4 -p PartKway 2d_naca0012_mixed.h5m naca4.h5m 
it does get a partition, which you can see in visit :) 


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If all goes well, I will test it against mbzoltan. By the way, is there a way to use mbzoltan in parallel with graph partitioners (parmetis, ptscotch)? mbzoltan tests if mpiComm.nprocs > 1 and then quits if otherwise... 

</blockquote>
yes, we use it in serial only 

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I would be glad to share the CGNS reader code back to you. I need to fix the current issues and improve the code (add global_id data, etc). I read each CGNS section into a different tag/set in h5m, so I can easily retrieve those in application code. Not sure if this is the right way to do so (should follow the convention to place data into MATERIAL_SET / DIRICHILET NEUMANN ?) but seemed straightforward to me. 

I have a CGNS writer class also in the works that I'll push back to the repo once it is working along with some sample meshes for unit tests. 


I have patched the 4.6.2 sources to also include configuration flags (going the autotools way here) to point to cgns libraries and include paths. Is the CMake toolchain the official one? 

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autotools is the official build tool. 

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Thank you, 

regards, 

Carlos 





</blockquote>
Thanks, 
Iulian 

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