I will soon have to do a lot of fluid simulations in blender (2.91), probably more than I can do on my current computer in terms of how long I would have to wait for the baking of the fluid simulation. I’m expecting simulations worth 100s of hours if I did them on my machine. (Still not quite sure if I go with mantaflow or flip fluids addon, but for this question it shouldn’t make much difference).
I’m considering externalizing the simulation to a virtual machine (VM) in the cloud. And because the cache files are so big I’m expecting also to render on the same machine because the 100s of GB of cache files won’t transfer quick enough. I’m having some uncertainties as to the details of this approach. Here are some more or less general questions, if you have thoughts on any of them I would highly appreciate your answer!
What is the bottleneck when doing physics simulations / liquid simulations? What are the most important specs? Is this more a RAM / CPU thing or is GPU an issue here too? Is disk access speed an issue?
What are the requirements the cloud service should fullfill? Do I need an OS with GUI to start the simulations or is there a way to trigger simulation in a file (one that I prepare on my machine) from commandline, on a “headless” server?
are there any services specifically for that purpose? Like a render-farm but then a sim-farm?
as I said before, ANY thoughts or experiences might be helpful. thank you!
kind regards, oyster