exits on second GPU when hybrid graphics present

[AGenchev]

If I run optirun ./clpeak -d 0
I get: Platform: Intel Gen OCL Driver Device: Intel(R) HD Graphics Kabylake Desktop GT1.5 Driver version : 1.3 (Linux x64) Compute units : 24 Clock frequency : 1000 MHz and so on - it works;
But If I run: optirun ./clpeak -d 1, I get:
Platform: Intel Gen OCL Driver Platform: NVIDIA CUDA and that's all. It stops here. Doesn't continue with the Nvidia.