I tried " Release_multi_gpu_fast_AIdenoising_3 "
It renders SUPER FAST with my render farm.(P106 x6)
E-CYCLE P106 x6 1:02
E-CYCLE GTX1070 1x 0:29
E-CYCLE MULTI GPU P106 x6 0:10
It doesn’t mean that you can render complex scene with your multi GPU render farm, because you can render super fast BMW scene with multi GPU.
Multi GPU bug has been there for months but I couldn’t notice it because BMW scene rendered at 1/3 time.
But Machin tools addon doesn’t work on the multi gpu patched build, and editing & saving doesn’t work… etc. Anyway it’s patched and renders fast.
I’m sure you can get some benefit from E-cycle.
And level 3 denoiser can boost render quality pretty much, it require huge memory like 40GB for 4K image. (if you don’t have enough ram, blender crash)
Mathieu working on optimizing composition and I hope I can save budget for another 32GB ram.