Hey this is a good question, and I don’t know the answer. Someone else on the team might be able to help tomorrow, but I thought you might be able to find an answer more quickly if you cross-posted this to the CUDA forum, since it’s really more of a CUDA API question than OptiX. CUDA Programming and Performance - NVIDIA Developer Forums
Hopefully someone here can help, but please do post here with the answer if you find out.
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David.