HPC FAQ: Difference between revisions
Content deleted Content added
Line 79:
= Is it possible run two TUFLOW HPC simulations using a single GPU and how does this affect performance? =
Yes, it is possible to run two (and more) than one simulation on a single GPU. The performance depends on whether the model needs more than half of the GPU’s resources. At worst, the models complete just as fast as if they ran one after the other. At best, the GPU has enough resources to run both side by side and complete them as if they ran on two GPUs. Realistically, the model may use a bit more than half of the resources, causing some slowdown. Model run’s startup phase can require 4-6x the RAM than the model calculations, the available memory needs to be sufficient to handle two (or more) models starting up side by side. If it is not sufficient, the model's startup phases can be staggered.<br>
<br>
= With Wu turbulence scheme being the new default, are old models using Smagorinsky wrong? =
| |||