One possible cause is that you have requested a high number of mesh points. The number of mesh points relate directly to the memory required to execute a simulation. Requesting more memory than is physically available causes the application to swap memory to disk degrading performance. The memory of a typical nanoHUB computer used for simulations is capable of holding approximately 55000 node points. This corresponds to a 235x235 grid.
Why does my simulation take so long to run?
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