Hybrid graphics in linux

Question

I came across Nvidia optimus implementation for linux called bumblebee project https://github.com/Bumblebee-Project I installed bumblebee on my laptop with Nvidia graphics card. The issue is that for the applications which need to use discrete gpu, have to be run through a special command "Optirun". Hence only when this is done, the discrete gpu is powered on else it is powered off whenever necessary to conserve power. Is there a way to identity whether an application needs discrete gpu to run or could run on normal on chip graphics processor. Can this be done in linux ?