on a Linux system (openSuse 13.2) with an Nvidia Tesla K40c -GPU

  I get the message :

THE NUMBER OF REQUESTED GPUS IS 1, BUT THE NUMBER OF DETECTED GPUS IS ZERO. SO, GPU WILL NOT BE USED FOR THE ANALYSIS.

And also:

***WARNING: FOUND MULTIPLE ACCLERATOR PLATFORM DRIVERS:
***WARNING: PLATFORM_CUDA
***WARNING: PLATFORM_OPENCL
***WARNING: USE ENVIRONMENT VARIABLE ABA_ACCELERATOR_TYPE TO SELECT THE   DESIRED PLATFORM TYPE
***WARNING: THE NUMBER OF REQUESTED GPUS IS 1, BUT THE NUMBER OF DETECTED GPUS  IS ZERO. SO, GPU WILL NOT BE USED FOR THE ANALYSIS.

What should be done? Install Specific drivers? Setting specific env variables?