CUDA driver library cannot be found.

[Chris Uchytil]

I recently updated my drivers with nvidia-current. Because of this, when executing code I get this error

Traceback (most recent call last):

  File "imageExpand.py", line 322, in <module>

    print cuda.gpus

  File "/home/uchytilc/anaconda2/lib/python2.7/site-packages/numba/cuda/cudadrv/devices.py", line 43, in __str__

    return ', '.join([str(d) for d in self.lst])

  File "/home/uchytilc/anaconda2/lib/python2.7/site-packages/numba/cuda/cudadrv/devices.py", line 26, in __getattr__

    numdev = driver.get_device_count()

  File "/home/uchytilc/anaconda2/lib/python2.7/site-packages/numba/cuda/cudadrv/driver.py", line 334, in get_device_count

    self.cuDeviceGetCount(byref(count))

  File "/home/uchytilc/anaconda2/lib/python2.7/site-packages/numba/cuda/cudadrv/driver.py", line 272, in __getattr__

    self.initialization_error)

numba.cuda.cudadrv.error.CudaSupportError: Error at driver init: 

CUDA driver library cannot be found.

If you are sure that a CUDA driver is installed,

try setting environment variable NUMBAPRO_CUDA_DRIVER

with the file path of the CUDA driver shared library.

Is the CUDA driver shared library path something like this /usr/local/cuda-8.0/lib64/......?

[stuart]

Perhaps try running `numba -s` and looking in the __CUDA Information__ section to find out what is/isn't working.

The NUMBAPRO_CUDA_DRIVER is usually a path to `libcuda.so`.

Hope this helps,

-- 

stuart