cudalink - Are you able to use CUDA on Linux?

I am using Mathematica 10.2 on Ubuntu 15.04 x64. At first, I try to use CUDALink:

Needs["CUDALink`"];

CUDAQ[]

It returns False.

The reason why it returns False is that the default paths for NVidia Driver and CUDA are

/usr/lib64/libnvidia-tls.so

and

/usr/lib64/libcuda.so

But these two libraries on my system are located at

/usr/lib/nvidia-346/libnvidia-tls.so.346.59

and

/usr/lib/x86_64-linux-gnu/libcuda.so

According to the documentation provided by Mathematica, to resolve this issue I have to set the system environment for NVIDIA_DRIVER_LIBRARY_PATH and CUDA_LIBRARY_PATH.

So, I export these two variables and run Mathematica on a terminal:

$ export NVIDIA_DRIVER_LIBRARY_PATH=/usr/lib32/nvidia-346/libnvidia-tls.so.346.59

$ export CUDA_LIBRARY_PATH=/usr/lib/x86_64-linux-gnu/libcuda.so

$ mathematica

and try to use CUDALink again. This time, CUDAQ[] does not return False. Instead, all functions are colored blue (The same effect as calling Exit[]). The kernel may crash but there are no information about it.

My graphics card is NVidia Geforce GTX 750 Ti, so it should have already support CUDA.

I also tested CUDALink on another PC (Ubuntu 14.04 x64, Mathematica 10.0, NVidia Geforce GTX980), and I got the same issue.

Are you able to use CUDALink on Linux?

Answer

Finally I got a solution. The libcuda.so which is originally from Ubuntu cannot be used.

I follow this instructions to install CUDA and it works!

Comments

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