Different results when running on CPU or GPU

RenderKit / oidn

Intel® Open Image Denoise library

https://www.openimagedenoise.org/

Apache License 2.0

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Different results when running on CPU or GPU #205

Open eletiri93 opened 6 months ago

eletiri93 commented 6 months ago

I run denoising of an HDR image produced by path tracing on the CPU, then on the GPU. The code is exactly the same, with the only difference being in the device creation. Upon comparing the results, I observed an MSE of approximately 2.7e-7. Is this expected? The GPUs tested were the Nvidia RTX A4000 and RTX 2070 Super.

atafra commented 6 months ago

Yes, this difference is expected and normal.