theano - libcublas.so cannot open shared object file: No such file or directory in ipython and notebook -

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the missing libcublas.so problem has been around time. common problem $path , $ld_library_path environment variable not set properly. , solutions command line scenarios have been posted in nvidia forum , here.

but no specific solution has been out similar symptoms in ipython or notebook. here own work around.

the problem still due environment variables: ipython , notebook cannot propagate settled $path , $ld_library_path. when happens, first thing check is

import os; print(os.environ['path']); print(os.environ['ld_library_path'])

most bin , lib paths not in these environs.

to solve ipython, use sudo path=$path ld_library_path=$ld_library_path ipython when starting ipython.

and notebook, add these lines end of jupyter_notebook_config.py:

import os os.environ['path'] += ':/usr/local/cuda/bin' os.environ['ld_library_path'] = '/usr/local/cuda/lib64'

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