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Old   June 16, 2011, 03:34
Default Question about blockMesh and decomposePar
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Yong Wang
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Hi, everyone.

I am using some pre-processors of OF to generate mesh for parallel computing. As there are more than 10 million cells (for DNS), the memory needed by blockMesh and decomposePar is larger than the memory of every computing node.

My question is, can I run blockMesh (or snappyHexMesh) and decomposePar in parallel? So that the memory needed at every node is acceptable.

Any message is welcome. Thanks.
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Old   June 18, 2011, 07:50
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Bruno Santos
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wyldckat is just really nicewyldckat is just really nicewyldckat is just really nicewyldckat is just really nice
Greetings Yong Wang,

A little searching on this forum and you would have found out that:
  1. blockMesh cannot be executed in parallel.
  2. snappyHexMesh can be executed in parallel.
Here's an example thread about this: Computations with eighty million cells

Best regards,
Bruno
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Old   June 18, 2011, 13:28
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Yong Wang
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Quote:
Originally Posted by wyldckat View Post
Greetings Yong Wang,

A little searching on this forum and you would have found out that:
  1. blockMesh cannot be executed in parallel.
  2. snappyHexMesh can be executed in parallel.
Here's an example thread about this: Computations with eighty million cells

Best regards,
Bruno

Hi Bruno Santos,
Thanks very much.Your reply is much helpful for me. I will do as what that thread said
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