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Are there any I/O heavy GPU workloads? Mining famously works with just one lane, offline rendering (e.g. Blender Cycles) I think also just uploads the whole sce

• kllrnohj 8y ago
  > offline rendering (e.g. Blender Cycles) I think also just uploads the whole scene once and then bounces the rays around… I'd imaging a workload like that or other HPC-compute workloads where the data set just doesn't fit in VRAM would certainly prefer more PCI-E lanes. I think that'd usually be considered using the wrong hardware for the job but if you're just messing around as part of a hobby you're obviously not buying the $7000 Radeon Pro SSG, either.
• the8472 8y ago
  There are GPU-accelerated database engines which can stream the database database from NVMe. I am not sure if they do direct device-to-device transfer which has only become supported recently or whether they still need to bounce through the main memory. In raytracing complex scenes can exceed your VRAM so if you don't want to fall back to CPU tracing you need a renderer that can swap parts of the BVH in and out on demand.