Does increasing the number of CPU cores contribute to faster simulation performance in this case?

Hi Nathen,

CPU's don't really influence the simulation speed if running on GPU. Typically we recommend using 4 CPU's with a GPU however all the computational effort is spent on the GPU.

For more input on simulation speed:

Regards

Stephen

So, when should I use the GPU CUDA solver, and when should I stick with the CPU solver?

CUDA solver is faster than CPU in nearly all scenarios.

You see a greater benefit of GPU with larger numbers of particles (1 million +) however I still use GPU for smaller numbers of particles (e.g. 1000- 10,000) as its still faster than CPU, just the difference in speed is not as great. I'm not sure where the CPU benefit over GPU cross-over is, if the simulation is a few hundred particles I would run on CPU.

Regards

Stephen