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June 25, 2009, 16:13 |
Fluent Runtime After Adaption
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#1 |
New Member
Join Date: Jun 2009
Posts: 13
Rep Power: 16 |
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. Thanks Scott N |
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June 25, 2009, 16:32 |
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#2 |
New Member
HP Kritzinger
Join Date: May 2009
Location: South Africa
Posts: 25
Rep Power: 16 |
hi scott
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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