To use only the two 2070s in your setup, please try launching with --/renderer/multiGpu/activeGpus=0,2. I took these indices from the system info table in your log file.
There is no UI yet for editing command line options, so you have to do it manually:
Next to Create’s Launch button click on the stack icon and then Settings. There you can click on the folder icon next to the install path, which will open up the file explorer with a bunch of startup scripts.
You can edit the omni.create.bat file and append the setting --/renderer/multiGpu/activeGpus=0,2 to the call. Then just double click the bat to launch.
Thanks for your valuable feedback! We’ll work on improving automatic multi-GPU detection.