Ça an you update to Theano dev version? It contains fixes. It don't have the old backend anymore. Cudnn should be optional in the dev version and Should give better error msg.
Fred Le lun. 12 juin 2017 15:32, Daniel Seita <[email protected]> a écrit : > I can run Theano using `device = gpu` in the configuration. It complains > about not being able to find the new backend, but at this point I see no > reason why to switch to the new backend. > > > On Monday, June 12, 2017 at 12:29:30 PM UTC-7, Daniel Seita wrote: >> >> I'm trying to follow the *simplest theano installation instructions I >> can find*. I'm using Ubuntu 16.04 (along with other settings described >> in the title) and the instructions seem to be here: >> http://deeplearning.net/software/theano/install_ubuntu.html# for Theano >> 0.9. >> >> I'm using Anaconda for Python 2.7. >> >> Running >> >> conda install numpy scipy mkl nose sphinx pydot-ng >> >> works without issues. >> >> Then the instructions say to get the GPU and CUDA set up. I've installed >> my CUDA drivers and they should be working, since I'm able to run >> TensorFlow. I set up these in the bashrc: >> >> export PATH="/usr/local/cuda-8.0/bin:$PATH" >> export CUDA_HOME=/usr/local/cuda-8.0 >> export LD_LIBRARY_PATH=/usr/local/lib >> export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/cuda-8.0/lib64 >> >> Finally, I ran >> >> conda install theano pygpu >> >> I was hoping this is it, because that automatically installs the GPU >> backend. In addition, pygpu seems to be working (I deleted the long line >> of periods): >> >> In [1]: import pygpu >> >> In [2]: pygpu.test() >> pygpu is installed in /home/daniel/anaconda2/lib/python2.7/site-packages/ >> pygpu >> NumPy version 1.12.1 >> NumPy relaxed strides checking option: True >> NumPy is installed in /home/daniel/anaconda2/lib/python2.7/site-packages/ >> numpy >> Python version 2.7.13 |Anaconda custom (64-bit)| (default, Dec 20 2016, >> 23:09:15) [GCC 4.4.7 20120313 (Red Hat 4.4.7-1)] >> nose version 1.3.7 >> *** Testing for TITAN X (Pascal) >> ---------------------------------------------------------------------- >> Ran 7051 tests in 138.494s >> >> OK >> >> I have this in my theanorc: >> >> [global] >> floatX = float64 >> device = cuda0 >> >> [cuda] >> root = /usr/local/cuda-8.0 >> >> Now let's see what happens: >> >> $ ipython >> Python 2.7.13 |Anaconda custom (64-bit)| (default, Dec 20 2016, 23:09:15) >> Type "copyright", "credits" or "license" for more information. >> >> IPython 5.3.0 -- An enhanced Interactive Python. >> ? -> Introduction and overview of IPython's features. >> %quickref -> Quick reference. >> help -> Python's own help system. >> object? -> Details about 'object', use 'object??' for extra details. >> >> In [1]: import theano >> ERROR (theano.gpuarray): Could not initialize pygpu, support disabled >> Traceback (most recent call last): >> File >> "/home/daniel/anaconda2/lib/python2.7/site-packages/theano/gpuarray/__init__.py" >> , line 164, in <module> >> use(config.device) >> File >> "/home/daniel/anaconda2/lib/python2.7/site-packages/theano/gpuarray/__init__.py" >> , line 151, in use >> init_dev(device) >> File >> "/home/daniel/anaconda2/lib/python2.7/site-packages/theano/gpuarray/__init__.py" >> , line 68, in init_dev >> context.cudnn_handle = dnn._make_handle(context) >> File >> "/home/daniel/anaconda2/lib/python2.7/site-packages/theano/gpuarray/dnn.py" >> , line 80, in _make_handle >> cudnn = _dnn_lib() >> File >> "/home/daniel/anaconda2/lib/python2.7/site-packages/theano/gpuarray/dnn.py" >> , line 67, in _dnn_lib >> raise RuntimeError('Could not find cudnn library (looked for v5[.1])' >> ) >> RuntimeError: Could not find cudnn library (looked for v5[.1]) >> >> I cannot even import theano successfully. There are two problems. The >> first is that pygpu isn't initialized (?) and the second is that the cudnn >> library couldn't be found. It was working for TensorFlow and the cudnn >> header is found in `/usr/local/cuda-8.0/lib64/cudnn.h` so I'm guessing the >> issue lies with the pygpu library. I have no idea how to fix this but there >> must be a common fix since this seems to be the default way to install >> theano? >> >> Another thread ( >> https://groups.google.com/forum/#!topic/theano-users/zzaJVrYBD1k) has a >> similar question but `sudo ldconfig` did not work for me and results in the >> same errors. >> > -- > > --- > You received this message because you are subscribed to the Google Groups > "theano-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- --- You received this message because you are subscribed to the Google Groups "theano-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
