Windows task manager by default doesn’t show the correct device utilization graph. Click on the small arrow next to 3D and select what should be called Graphics_1 I believe.
Kit can also show device utilization. I’m not sure if this is exposed in Machinima, though. In Kit, enable the GPU profiler via Window → Profiler → GPU Profiler. (You can close this window now). Then open Window → Statistics, and select the GPU Utilization scope.
GPU 0 Weight in the PT MGPU settings denotes how much work is assigned to the primary GPU in relation to the other GPUs. The primary GPU typically does some extra tasks such as OptiX denoising and display, that’s why it’s 0.65 by default. If your device utilization shows that GPU 0 is underutilized, you can increase this value. Likewise, if it’s at 100% while the other GPUs are underutilized, you can lower it a bit, to squeeze out maximum overall performance.
Hi Pekka, Thanks for sharing the helpful information. I’m on the way to find a render farm for my upcoming Omniverse project. Looks like irender’s service will be useful to us. I will try them out. but, have you tested again?