How to set GPU preferences remotely?

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@kkar thank you so much, this was finally the solution.

The lines I needed were actually the following two, but it was found in the same thread you linked to.

bpy.context.user_preferences.addons['cycles'].preferences.compute_device_type = 'CUDA'
bpy.context.user_preferences.addons['cycles'].preferences.devices[0].use = True

For future reference:

  1. Check to see if Cycles can see devices by running the following from command line and seeing if it lists your devices
blender -b --python-console  #launches the blender python console
import _cycles
_cycles.available_devices()

It should give an output like

(('AMD FX(tm)-6350 Six-Core Processor', 'CPU', 'CPU'), ('GeForce GTX 970', 'CUDA', 'CUDA_GeForce GTX 970_0000:01:00'))

  1. If your devices are not listed then install / reinstall NVidia / CUDA drivers. If your device is listed proceed to step 3

  2. In order to set your devices, run the following from the blender python console (where X is your desired CUDA device number)

bpy.context.user_preferences.addons['cycles'].preferences.compute_device_type = 'CUDA'
bpy.context.user_preferences.addons['cycles'].preferences.devices[X].use = True

This will probably be completely outdated in a couple months when 2.8 releases and I am going to have to figure this out all over again, but in the mean time I hope this helps somebody

and again, thank you @kkar for being patient and helping me through this :grinning:

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