protozoantim.piersonSo I would still suspect you run into a memory issue with your production scene.. you could, to narrow this down a bit, turn off the optix device for rendering for a moment, to force XPU into CPU-only mode and see if your render still dies.
The workaround you linked was for a different issue
So CPU seems to work for a 9k x 16k render (for at least about 5 mins, I terminated after that). It used about 44 / 45 gb RAM to do so.
However, XPU performance appears to have degraded a fair bit with this build: I cannot render at 8k or 7k. At 6k (x 10667), I'm told the GPU v ram is about 16gb (of 45gb) usage and system ram is about 31gb. See screenshot.
The fact that the there's no GPU memory scaling to speak of suggests there's something wrong. The complexity of the implementation _could_ be so bad that a ~25% increase in resolution results in 2.5x memory usage, but I don't think that would be the case. Especially as GPU usage never actually goes above 16gb before the process is terminated. Windows is managing the page file and there's still a hundred or more GBs free, so that's not the issue.