Unfortunately, the issue with the fallback to CPU on render still persists. Is there anything I can do to get Nvidia closer to solving the problem?
Why do you believe this problem is something Nvidia can solve, rather than the author of your application software? Have you contacted DAZ? We fixed a couple things that started this thread over 3 years ago, so the problem you’re seeing now is rather unlikely to be the same problem. We certainly cannot do anything without any details, and bug triage and requests for any fixes DAZ deems necessary should be coming from the DAZ team that is integrating OptiX into their application, which is why these bug reports need to go directly to DAZ.
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David.
After all, you have to believe in something.
I found something that solves the problem for me. However, I cannot say whether this is a problem with the driver or the Dazstudio: If I limit the target temperature so that it remains below 80 ° C, there is no fallback. This limits the performance to about 80%, but 80% rendering with the GPU is significantly more than 100% with the CPU.
My guess is that either Dazstudio is watching the temp and kicking out, or the driver is sending a warning that Studio is misinterpreting. That’s your part or that of the Dazstudio. I found a solution on my own.
Great! I’m glad you found a workaround. This is definitely a different problem than the initial report in this thread, and so you really should to report this to DAZ, even with your workaround. It may not ever get fixed otherwise.
For posterity, for the benefit of others, since this thread keeps coming back, the part that needs to be reiterated is that for support purposes, it does not matter which part of the system has the error. DAZ needs to drive the process of fixing it regardless, whether the bugs are in Daz Studio, or OptiX, or Iray, or the GPU, or the Nvidia driver, or something else. DAZ needs to be aware of the issue, first and foremost. They are solely responsible for triage and reproducing the problem, and DAZ needs to determine what technical fix is needed, and whether Nvidia needs to be involved. DAZ is responsible for having the support conversation with their users, and they are responsible for having a developer-level conversation with Nvidia and providing us with any technical details and reproducer cases. I can totally understand the temptation to ask Nvidia for help and circumvent DAZ support, especially when we’re trying to be very responsive. But ultimately and perhaps unintuitively, it does everyone a disservice to try to short-circuit the proper support channel for your application.
I’m going to close this thread permanently. If people have other issues, you are free to open a new thread, however, keep in mind this is an OptiX developer forum, and not end-user application support for any applications. The application developers are responsible for contacting us, so please report these kinds of issues directly to your application developer.
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David.