[chaosbutters]

I can answer this! So my work computers are 28, 32, and 96 physical cores each. And honestly, none of those are enough. I'd ideally have a very high clock speed 128 core desktop with a 1,000-10,000 compute cluster available with 10 gb/s internet speeds.

Now back to your question on why these are needed, parallelized simulations. I do computational fluid dynamics (CFD) for designing, fixing, troubleshooting, and optimizing processes and products. They solve large systems of equations that need many cores for meshing and solving and then we need high CPU/GPU core counts just to handle and process the data. In my case at least, the average industrial/manufacturing piece of equipment needs about 1000 cores to recreate as a digital twin due to the amount of multiphysics, complicated geometry, etc.