NVIDIA OpenCL on Trusty or Mint 17 - opencl

Question

I am having a really hard time getting OpenCL working in Trusty or Mint 17. Im using ppa:xorg-edgers, tried updates and even nvidia-340.
sudo apt-get install nvidia-331 nvidia-331-uvm nvidia-cuda-toolkit nvidia-cuda-dev opencl-headers nvidia-opencl-dev clinfo
Rebooting and then
babak#ASUS-G750JH:~$ clinfo
clinfo: /usr/lib/x86_64-linux-gnu/libOpenCL.so.1: no version information available (required by clinfo)
I: ICD loader reports no usable platforms
I have tried this on two Intel based systems with Nvidia GPU's a desktop with a GeForce 280, and a laptop with GeForce 780M with a physically disabled Optimus by the Asus, it only has the Nvidia GPU. A G750JH.
Has anyone done this successfully? Can I roll back and remove the PPA and use the default repo's, would that even make a difference?

Answer 1

For the xorg-edgers nvidia-346 packages, I get it working by installing also the nvidia-opencl-icd-346 package and its dependency ocl-icd-libopencl1.

Answer 2

Im not 100% sure what the issue was, but seems that the ppa:xorg-edgers, may have an issue. Whatever is broken the process below fixes the issue and results in both Cuda and OpenCL working with Nvidia and Ubuntu 14.04 x64
sudo apt-get install dkms linux-headers-generic fakeroot build-essential
sudo apt-get remove --purge nvidia-*
sudo apt-get purge nvidia*
sudo ./NVIDIA-Linux-x86_64-346.47.run
Downloaded from Nvidia, 340.xx supports legacy cards
Yes for all options
sudo reboot chmod +x cuda-repo-ubuntu1404_6.5-14_amd64.deb
dpkg -i cuda-repo-ubuntu1404_6.5-14_amd64.deb
chmod +x cuda_6.5.14_linux_64.run sudo ./cuda_6.5.14_linux_64.run
Choose option to leave out the GPU Driver
sudo apt-get update
sudo apt-get install cuda
add to bottom of bashrc
export CUDA_HOME=/usr/local/cuda-6.5
export LD_LIBRARY_PATH=${CUDA_HOME}/lib64
export GLPATH=/usr/lib/
PATH=${CUDA_HOME}/bin:${PATH}
export PATH
sudo reboot
./ocore_601_OpenCL_v20 --devices
Downloaded from http://stanford.edu/~yutongz/ocores/
Outputs:
OpenCL compatible devices:
name: GeForce GTX 780M | platformId: 0 deviceId: 0
cd ~/NVIDIA_CUDA-6.5_Samples/1_Utilities/deviceQuery
make
./deviceQuery
./deviceQuery Starting...
CUDA Device Query (Runtime API) version (CUDART static linking)
Detected 1 CUDA Capable device(s)
Device 0: "GeForce GTX 780M"
......
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