GPU fail changing to CPU

[DCK]

And regarding the second question, it is recommended to enable all CPU cores in case there are no OpenCL devices enabled.

Alexey,

I thought it was recommended to disable one CPU core per GPU enabled, and double this amount if you have hyper-threading. So, with one GPU, 8 CPU cores, and hyperthreading, one should have 6 CPU cores active. Am I mistaken?