I have installed Theano
framework and enabled CUDA on my machine, however when I "import theano" in my python console, I got the following message:
>>> import theano
Using gpu device 0: GeForce GTX 950 (CNMeM is disabled, CuDNN not available)
Now that "CuDNN not available", I downloaded cuDnn
from Nvidia website. I also updated 'path' in environment, and added 'optimizer_including=cudnn' in '.theanorc.txt' config file.
Then, I tried again, but failed, with:
>>> import theano
Using gpu device 0: GeForce GTX 950 (CNMeM is disabled, CuDNN not available)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Anaconda2\lib\site-packages\theano\__init__.py", line 111, in <module>
theano.sandbox.cuda.tests.test_driver.test_nvidia_driver1()
File "C:\Anaconda2\lib\site-packages\theano\sandbox\cuda\tests\test_driver.py", line 31, in test_nvidia_driver1
profile=False)
File "C:\Anaconda2\lib\site-packages\theano\compile\function.py", line 320, in function
output_keys=output_keys)
File "C:\Anaconda2\lib\site-packages\theano\compile\pfunc.py", line 479, in pfunc
output_keys=output_keys)
File "C:\Anaconda2\lib\site-packages\theano\compile\function_module.py", line 1776, in orig_function
output_keys=output_keys).create(
File "C:\Anaconda2\lib\site-packages\theano\compile\function_module.py", line 1456, in __init__
optimizer_profile = optimizer(fgraph)
File "C:\Anaconda2\lib\site-packages\theano\gof\opt.py", line 101, in __call__
return self.optimize(fgraph)
File "C:\Anaconda2\lib\site-packages\theano\gof\opt.py", line 89, in optimize
ret = self.apply(fgraph, *args, **kwargs)
File "C:\Anaconda2\lib\site-packages\theano\gof\opt.py", line 230, in apply
sub_prof = optimizer.optimize(fgraph)
File "C:\Anaconda2\lib\site-packages\theano\gof\opt.py", line 89, in optimize
ret = self.apply(fgraph, *args, **kwargs)
File "C:\Anaconda2\lib\site-packages\theano\gof\opt.py", line 230, in apply
sub_prof = optimizer.optimize(fgraph)
File "C:\Anaconda2\lib\site-packages\theano\gof\opt.py", line 89, in optimize
ret = self.apply(fgraph, *args, **kwargs)
File "C:\Anaconda2\lib\site-packages\theano\sandbox\cuda\dnn.py", line 2508, in apply
dnn_available.msg)
AssertionError: cuDNN optimization was enabled, but Theano was not able to use it. We got this error:
Theano can not compile with cuDNN. We got this error:
>>>
anyone can help me? Thanks.
There should be a way to do it by setting only the Path environment variable but I could never get that to work. The only thing that worked for me was to manually copy the CuDNN files into the appropriate folders in your CUDA installation.
For example, if your CUDA installation is in C:\CUDA\v7.0 and you extracted CuDNN to C:\CuDNN you would copy as follows:
After that it should work.