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[ANSYS Meshing] Meshing in parallel

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Old   August 23, 2015, 11:06
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Chris Bennett
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As above. Mesher will use a different core for each part. If you only have one part you could tell it to use 3 or 30 cores there would be no difference to speed
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Old   August 23, 2015, 11:11
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Joe
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Chris,

Thank you for the reply,

I have 2 parts and more than 1000 bodies. I guess this feature works when the software generates the mesh once...I am trying to mesh section by section and see how it goes in each section....In this case, parallel doe snot work. Am I right or I am missing something?

Thank you!
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Old   August 23, 2015, 11:51
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Chris Bennett
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You are right.

I would guess its a lot to do with how the parallel algorithm can split up the tasks. It can treat each part as a separate job in its own right but cannot efficiently cut up a single section to run in parallel

If you are meshing something with multiple parts the speed up is wonderful, but that doesn't happen that often.
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Old   October 15, 2015, 10:13
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Parallel meshing in ANSYS Meshing works across Parts. If you have a CFD Model with multiple bodies, it will utilize 1 core. If you have multiple parts with non conformals then you can leverage all of your cores
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Old   October 15, 2015, 10:54
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Hello All,

ANSYS WorkBench Meshing supports parallel meshing of multiple parts. So if you have single multi-body part, then it will mesh that part serially. One reason for that is that they have to maintain conformal mesh between bodies belonging to same part. If you have multiple parts then you are in luck and can utilize all the power of parallel meshing. But remember, parallel meshing is as fast as the slowest meshing part.

By default the parallel meshing is on in WB meshing and set to "program controlled" which means that program decides how many cores to use.

Regards,
Sarang
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