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TOPIC: PARTEL & mesh decomposition

PARTEL & mesh decomposition 12 years 6 months ago #4561

  • lsb1@soton.ac.uk
  • lsb1@soton.ac.uk's Avatar
I have noticed that when using parallel processors, PARTEL sometimes breaks a mesh into sub-domains that themselves have non-contiguous parts. Does this matter in terms of performance? Can the decomposition be affected by re-ordering the node numbers?

Thanks.
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PARTEL & mesh decomposition 12 years 6 months ago #4562

  • jmhervouet
  • jmhervouet's Avatar
Hello,

Yes, I have noticed also this fact that is due to the domain partitioner Metis. It is not a problem since Telemac is able to deal with domains that are not contiguous.

As for node numbering, I do not know.

With best regards,

Jean-Michel Hervouet
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