After installing the gpu version of the tensorflow, I got this error while importing it:

>>> import tensorflow as tf
Traceback (most recent call last):
  File "/usr/local/lib/python3.5/dist-packages/tensorflow/python/pywrap_tensorflow.py", line 41, in 
    from tensorflow.python.pywrap_tensorflow_internal import *
  File "/usr/local/lib/python3.5/dist-packages/tensorflow/python/pywrap_tensorflow_internal.py", line 28, in 
    _pywrap_tensorflow_internal = swig_import_helper()
  File "/usr/local/lib/python3.5/dist-packages/tensorflow/python/pywrap_tensorflow_internal.py", line 24, in swig_import_helper
    _mod = imp.load_module('_pywrap_tensorflow_internal', fp, pathname, description)
  File "/usr/lib/python3.5/imp.py", line 242, in load_module
    return load_dynamic(name, filename, file)
  File "/usr/lib/python3.5/imp.py", line 342, in load_dynamic
    return _load(spec)
ImportError: libcusolver.so.8.0: cannot open shared object file: No such file or directory

None of the solutions online, like setting the environmental variables to cuda installation.

I tried locate libcusolver.so and none of the paths refers to the version I wanted. This is because tensorflow only works with cuda 8.0 but the newest version of cuda is installed. (In my case, 8.0).

Because I am using ubuntu and installed cuda through ppa, I simply installed cuda 8.0 through sudo apt-get install cuda-8-0 and everything worked.

2017/10/16