4 ms·
I’d imagine ray tracing is a bit easier to paralize over lots of older cards. The computations aren’t as heavily linked and are more fault tolerant. So I doubt
by Havoc 2y ago
I’d imagine ray tracing is a bit easier to paralize over lots of older cards. The computations aren’t as heavily linked and are more fault tolerant. So I doubt anyone is paying h100 style premiums
- bryanlarsen 2y agoPixar is paying a massive premium; they probably are using an order of magnitude or two more CPUs than they would if they could use GPUs. Using a hundred CPUs in place of a single H100 is a greater-than-h100 style premium.
- imjonse 2y agoWould Pixar's existing software run on GPUs without much work?
- jsheard 2y agoIt does already, at least on Nvidia GPUs: https://rmanwiki.pixar.com/pages/viewpage.action?mobileBypass=true&spaceKey=REN24&title=XPU https://rmanwiki.pixar.com/pages/viewpage.action?mobileBypas... They currently only use the GPU mode for quick iteration on relatively small slices of data though, and then switch back to CPU mode for the big renders.
- jsheard 2y agoThe computations are easily parallelized, sure, but the data feeding those computations isn't easily partitioned. Every parallel render node needs as much memory as a lone render node would, and GPUs typically have nowhere near enough for the highest of high end productions. Last I heard they were putting around 128GB to 256GB of RAM in their machines and that was a few years ago.