Learning Forum

[Ammar Ahmed]

Hello everyone, I am trying to speed up my simple CFD (flow over body), I have dell precision tower with dual xeon e5 2690 v4, with 28 cores and 56 threads, and RTX 3050 24GB. The issue i am facing is that while performing CFD, usig SIMPLE method the simulation runs perfectly but GPU utilization is zero and when I shift to COUPLED method it utilizes GPU but consupmtion time is very large (about 50% more as compared to before). Kindly guide as to how I can shift to full GPU utilization with minimal time. For reference I am attachng a time comparison data.

[Rob]

The gpu offload is only compatible with a few models so you may find it's not giving much of a speed up. Depending on cell count and models more cpu may give a good speed up, but that also assumes the hardware can handle the message passing between the cores.