HPC FAQ: Difference between revisions

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See <u>[[HPC_Adaptive_Timestepping | HPC Adaptive Timestepping]]</u>
 
= Why is the TUFLOW HPC adaptive timestepping is selecting very small timesteps?=
Common reasons for TUFLOW HPC selecting very small timesteps are:
* The model has one or more or erroneous deep cells. The Celerity Control Number described further above reduces the timestep proportionally to the square root of the depth, so any unintended deep cells can cause a reduction in the timestep.