mark Can you please check Help/About dialog, does it say (cuda) next to the version number? If yes, then CUDA libraries are detected and used by Tonfotos.
Please take into account, that Tonfotos is using GPU two ways. One is for UI accelerarion, and this is done by electron framework Tonfotos is build on. This one can use any GPU, including built-in Intel graphics one. There is a way to tune in Windows settings which GPU application will be using, but I would not bother, as this does barely has any effect on performance.
The other thing is face recognition. This can only use Nvidia card, as no other cards support CUDA. And Windows settings cannot influence that. When it is on, face recognition is like 10 times faster, which results in 2-3 times faster files indexing (as there is lot more program does. apart from just face recognition). However. even when it is in progress, your card is so powerful, this recognition will barely use few percents of its capability, so you will not see huge spikes in GPU consumption, and that is OK. This has to do with the fact, that again, program has lot more to do than just crunching faces, so it just cannot provide enough work for your super-powerfull GPU to be fully busy.
Hope that answers your question.
