|June 25, 2009, 15:13||
Fluent Runtime After Adaption
Join Date: Jun 2009
Posts: 13Rep Power: 8
Wondering what others experience is with running Fluent and hanging-node adaption.
I have a case with 50 million finite volumes that takes X sec/iteration.
I adapted and have 65 million finite volumes and it now takes 4X sec/iteration.
I would expect less, but any other experiences would be useful.
|June 25, 2009, 15:32||
Join Date: May 2009
Location: South Africa
Posts: 25Rep Power: 8
i presume you are running a distributed parallel run? (or you have very nice SMP hardware...)
what i have seen is that the adapted mesh sometimes tend to stay on the partition where it was generated. You will start seeing unequal loads on the parallel cores - in effect you might have a few of your cores which now has 4 times as many cells to compute. you can either manually repartition in Fluent, or try activating the load balancing for parallel runs.
just a thought...
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