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96GB of RAM with a NVLink connection! It will be interesting to see what happens on the RTX 2080 front next week, am hoping we finally get more RAM!

LeoNatan25 8y ago
Yes, need at least 32GB vram to render them console ports.
boulos 8y ago
Disclosure: I work on Google Cloud. You don’t need to wait, you can put together 8xV100s with NVLINK on major clouds including GCE and AWS. That’s 128 GB of densely connected HBM2.
abledon 8y ago
May I ask... what on earth does one do with 96GB of GPU ram? I mean , what type of model or problem uses this? Pix2pix at 4K resolution?
- TomVDB 8y ago
  I think it’s used to load all the geometry of really a complex scene with a lot of geometry. (Think Pixar movie.) With ray tracing, if you can’t load the whole scene in memory, it’s simply not going to work. Disney recently released a scene of Moana for public use. It has 15 billion primitives! http://www.cgchannel.com/2018/07/download-disneys-data-set-for-motunui-island-from-moana/ http://www.cgchannel.com/2018/07/download-disneys-data-set-f...
  - dahart 8y ago
    > Disney recently released a scene of Moana for public use. It has 15 billion primitives! FWIW, that’s after instancing, which doesn’t take up much memory. The Moana scene’s data files are mostly ptx textures, the geometry is only a fraction of it. The subd geometry might expand to be larger in memory than the textures, though, depending on if it’s subsivided and how much.
    - TomVDB 8y ago
      Do you by any chance know how much RAM the CPUs in a render farm need? That would help to put the 48GB in context... Answering my own question: http://pharr.org/matt/blog/2018/07/08/moana-island-pbrt-1.html http://pharr.org/matt/blog/2018/07/08/moana-island-pbrt-1.ht... “...with memory use upward of 70 GB during rendering.” The author is later able to reduce the amount of memory significantly by rewriting small parts of his renderer.
      - dahart 8y ago
        Depends heavily on the production & team tools/workflow, and it’s been a few years since I was in production, but I personally believe hundreds of GBs is reasonably common. The Moana scene data in PBRT form doesn’t quite contain all the data they had in production, and I don’t know, but PBRT might be better about texture caching than some production renderers too.
- dahart 8y ago
  Textures is a big one. Film rendering sometimes references terabytes of textures.

LeoNatan25 8y ago

Yes, need at least 32GB vram to render them console ports.

boulos 8y ago

Disclosure: I work on Google Cloud. You don’t need to wait, you can put together 8xV100s with NVLINK on major clouds including GCE and AWS. That’s 128 GB of densely connected HBM2.

abledon 8y ago

May I ask... what on earth does one do with 96GB of GPU ram? I mean , what type of model or problem uses this? Pix2pix at 4K resolution?

TomVDB 8y ago
I think it’s used to load all the geometry of really a complex scene with a lot of geometry. (Think Pixar movie.) With ray tracing, if you can’t load the whole scene in memory, it’s simply not going to work. Disney recently released a scene of Moana for public use. It has 15 billion primitives! http://www.cgchannel.com/2018/07/download-disneys-data-set-for-motunui-island-from-moana/ http://www.cgchannel.com/2018/07/download-disneys-data-set-f...
- dahart 8y ago
  > Disney recently released a scene of Moana for public use. It has 15 billion primitives! FWIW, that’s after instancing, which doesn’t take up much memory. The Moana scene’s data files are mostly ptx textures, the geometry is only a fraction of it. The subd geometry might expand to be larger in memory than the textures, though, depending on if it’s subsivided and how much.
  - TomVDB 8y ago
    Do you by any chance know how much RAM the CPUs in a render farm need? That would help to put the 48GB in context... Answering my own question: http://pharr.org/matt/blog/2018/07/08/moana-island-pbrt-1.html http://pharr.org/matt/blog/2018/07/08/moana-island-pbrt-1.ht... “...with memory use upward of 70 GB during rendering.” The author is later able to reduce the amount of memory significantly by rewriting small parts of his renderer.
    - dahart 8y ago
      Depends heavily on the production & team tools/workflow, and it’s been a few years since I was in production, but I personally believe hundreds of GBs is reasonably common. The Moana scene data in PBRT form doesn’t quite contain all the data they had in production, and I don’t know, but PBRT might be better about texture caching than some production renderers too.
dahart 8y ago
Textures is a big one. Film rendering sometimes references terabytes of textures.