nvcc compiler not found on

[josephmisiti]

I just launched your AMI, logged in and saw the following error:

(venv)ubuntu@ip-172-31-30-194:~$ python -c 'import theano'
ERROR (theano.sandbox.cuda): nvcc compiler not found on $PATH. Check your nvcc installation and try again.

I tried to fix this myself using the following command:

echo -e "\nexport PATH=/usr/local/cuda-7.0/bin:$PATH\n\nexport LD_LIBRARY_PATH=/usr/local/cuda-7.0/lib64" >> .bashrc
source ~/.bashrc

But now I see the following:

(venv)ubuntu@ip-172-31-30-194:~$ python -c 'import theano'
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/home/ubuntu/venv/src/theano/theano/__init__.py", line 52, in <module>
    from theano.gof import (
  File "/home/ubuntu/venv/src/theano/theano/gof/__init__.py", line 38, in <module>
    from theano.gof.cc import \
  File "/home/ubuntu/venv/src/theano/theano/gof/cc.py", line 13, in <module>
    import numpy
  File "/home/ubuntu/venv/local/lib/python2.7/site-packages/numpy/__init__.py", line 170, in <module>
    from . import add_newdocs
  File "/home/ubuntu/venv/local/lib/python2.7/site-packages/numpy/add_newdocs.py", line 13, in <module>
    from numpy.lib import add_newdoc
  File "/home/ubuntu/venv/local/lib/python2.7/site-packages/numpy/lib/__init__.py", line 18, in <module>
    from .polynomial import *
  File "/home/ubuntu/venv/local/lib/python2.7/site-packages/numpy/lib/polynomial.py", line 19, in <module>
    from numpy.linalg import eigvals, lstsq, inv
  File "/home/ubuntu/venv/local/lib/python2.7/site-packages/numpy/linalg/__init__.py", line 51, in <module>
    from .linalg import *
  File "/home/ubuntu/venv/local/lib/python2.7/site-packages/numpy/linalg/linalg.py", line 29, in <module>
    from numpy.linalg import lapack_lite, _umath_linalg
ImportError: libopenblas.so.0: cannot open shared object file: No such file or directory

So then I executed:

sudo apt-get install libopenblas-base

And then saw the following error:

(venv)ubuntu@ip-172-31-30-194:~$ python -c 'import theano'
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/home/ubuntu/venv/src/theano/theano/__init__.py", line 52, in <module>
    from theano.gof import (
  File "/home/ubuntu/venv/src/theano/theano/gof/__init__.py", line 38, in <module>
    from theano.gof.cc import \
  File "/home/ubuntu/venv/src/theano/theano/gof/cc.py", line 14, in <module>
    import numpy
  File "/home/ubuntu/venv/local/lib/python2.7/site-packages/numpy/__init__.py", line 170, in <module>
    from . import add_newdocs
  File "/home/ubuntu/venv/local/lib/python2.7/site-packages/numpy/add_newdocs.py", line 13, in <module>
    from numpy.lib import add_newdoc
  File "/home/ubuntu/venv/local/lib/python2.7/site-packages/numpy/lib/__init__.py", line 18, in <module>
    from .polynomial import *
  File "/home/ubuntu/venv/local/lib/python2.7/site-packages/numpy/lib/polynomial.py", line 19, in <module>
    from numpy.linalg import eigvals, lstsq, inv
  File "/home/ubuntu/venv/local/lib/python2.7/site-packages/numpy/linalg/__init__.py", line 51, in <module>
    from .linalg import *
  File "/home/ubuntu/venv/local/lib/python2.7/site-packages/numpy/linalg/linalg.py", line 29, in <module>
    from numpy.linalg import lapack_lite, _umath_linalg
ImportError: /home/ubuntu/venv/local/lib/python2.7/site-packages/numpy/linalg/lapack_lite.so: undefined symbol: zgelsd_

Of which, this stack overflow answer is telling me to upgrade numpy (but it is already upgraded)

I was able to follow these directions to get numpy reinstalled and the error went away but now I am seeing the following error:

(venv)ubuntu@ip-172-31-30-194:~/neural_artistic_style$ python -c 'import theano'
ERROR (theano.sandbox.cuda): Failed to compile cuda_ndarray.cu: libcublas.so.7.0: cannot open shared object file: No such file or directory
WARNING (theano.sandbox.cuda): CUDA is installed, but device gpu is not available  (error: cuda unavilable)

But I couldnt resolve this one ...

[ogrisel]

LD_LIBRARY_PATH should include both the cuda libraries and the openblas libraries.

[Hediby]

I had the same problem, this should fix it :

export PATH=/home/ubuntu/venv/bin:/usr/local/cuda/bin:$PATH
export LD_LIBRARY_PATH=/usr/local/cuda:/usr/local/cuda/lib64:/opt/OpenBLAS-no-openmp/lib