To force on the CPU, you need two Theano flags. device=CPU
And force_device=True This should make Theano not use the GPU at all. Fred Le dim. 26 févr. 2017 20:37, Thomas Ploetz <[email protected]> a écrit : > Here is the full output: > > >gcc --version > Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr > --with-gxx-include-dir=/usr/include/c++/4.2.1 > Apple LLVM version 7.3.0 (clang-703.0.29) > Target: x86_64-apple-darwin16.4.0 > Thread model: posix > InstalledDir: > /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin > > Cheers, > Thomas > > On Sunday, 26 February 2017 18:41:08 UTC-5, Ramana Subramanyam wrote: > > > Could you check what version of GCC you're using ? > > Ramana > > Thanks again. Interestingly it does NOT work on the CPU -- I am running > into the same issues again. > > So, there seems to be more to the problem that CUDA? > > Thomas > > On Friday, 24 February 2017 11:58:54 UTC-5, Ramana Subramanyam wrote: > > THEANO_FLAGS=device=cpu > > > Excellent! That helped and I can now run the code (as well as my own ...). > > Quick question: How would I convince theano to NOT use the GPU but rather > stick to the CPU (that is, to not use cuda at all)? Or would I run into the > same issue again then? > > Many thanks for your help! Much appreciated. > > Thomas > > On Thursday, 23 February 2017 17:09:35 UTC-5, Ramana Subramanyam wrote: > > Hi, > I tried training your code and it works fine on my system. Try upgrading > to CUDA 8 and run the code. > > Ramana > > On Thursday, February 23, 2017 at 11:08:23 PM UTC+1, Ramana Subramanyam > wrote: > > > Hi, > > I use theano on 10.12, Sierra as well. What version of nvcc do you use? > XCode 7.3 supports only CUDA 8. You don't need to change versions of XCode > or CLT. I use the same versions of these softwares as you. > > Ramana > > Folks -- > > I am stuck in version hell I suppose and need some help for running theano > on my Mac. > > Here is the config: > Mac OS: 10.12.3 (16D32) > > python 2.7 (I use anaconda but I have tried the /usr-version that comes > with the OS as well -- same result) > > theano: Theano (0.9.0rc1) > lasagne: Lasagne (0.2.dev1) > numpy: numpy (1.12.0) > > Xcode: Version 7.3 (7D175) > clang: > Apple LLVM version 7.3.0 (clang-703.0.29) > Target: x86_64-apple-darwin16.4.0 > Thread model: posix > > Unfortunately, I cannot downgrade XCode (clang) because I need it for > other projects. > > So, here is what happens. I am working on LSTM models and have narrowed my > version problem down as follows: Using the code provided here: > http://colinraffel.com/talks/hammer2015recurrent.pdf (python file > attached) calls to theano.function (line 154 in the attached) result in the > following error message (excerpt): > > ======/ SNIP /============ > Problem occurred during compilation with the command line below: > /usr/bin/clang++ -dynamiclib -g -O3 -fno-math-errno -Wno-unused-label > -Wno-unused-variable -Wno-write-strings -march=haswell > -DNPY_NO_DEPRECATED_API=NPY_1_7_API_VERSION -m64 -fPIC -undefined > dynamic_lookup > -I/Users/thomas/anaconda/lib/python2.7/site-packages/numpy/core/include > -I/Users/thomas/anaconda/include/python2.7 > -I/Users/thomas/anaconda/lib/python2.7/site-packages/theano/gof > -L/Users/thomas/anaconda/lib -fvisibility=hidden -o > /Users/thomas/.theano/compiledir_Darwin-16.4.0-x86_64-i386-64bit-i386-2.7.13-64/tmp5GtYpU/39a151e745f8754653c9e8ca5ea9cf75.so > /Users/thomas/.theano/compiledir_Darwin-16.4.0-x86_64-i386-64bit-i386-2.7.13-64/tmp5GtYpU/mod.cpp > /Users/thomas/.theano/compiledir_Darwin-16.4.0-x86_64-i386-64bit-i386-2.7.13-64/tmp5GtYpU/mod.cpp:894:21: > warning: comparison of array 'outputs' equal to a null pointer is always > false [-Wtautological-pointer-compare] > if (outputs == NULL) { > ^~~~~~~ ~~~~ > /Users/thomas/.theano/compiledir_Darwin-16.4.0-x86_64-i386-64bit-i386-2.7.13-64/tmp5GtYpU/mod.cpp:919:54: > error: arithmetic on a pointer to void > PyArray_DATA(V3) + data_offset, > ~~~~~~~~~~~~~~~~ ^ > 1 warning and 1 error generated. > > Traceback (most recent call last): > File "lstm_baseline.py", line 154, in <module> > train = theano.function([l_in.input_var, target_values, > l_mask.input_var], cost, updates=updates) > File > "/Users/thomas/anaconda/lib/python2.7/site-packages/theano/compile/function.py", > line 326, in function > output_keys=output_keys) > File > "/Users/thomas/anaconda/lib/python2.7/site-packages/theano/compile/pfunc.py", > line 486, in pfunc > output_keys=output_keys) > ======/ SNAP /============ > > later on in theoutput: > ======/ SNIP /============ > Exception: ('The following error happened while compiling the node', > Split{4}(Assert{msg='Theano Assert failed!'}.0, TensorConstant{1}, > MakeVector{dtype='int64'}.0), '\n', "Compilation failed (return status=1): > /Users/thomas/.theano/compiledir_Darwin-16.4.0-x86_64-i386-64bit-i386-2.7.13-64/tmp5GtYpU/mod.cpp:894:21: > warning: comparison of array 'outputs' equal to a null pointer is always > false [-Wtautological-pointer-compare]. if (outputs == > NULL) {. ^~~~~~~ ~~~~. > /Users/thomas/.theano/compiledir_Darwin-16.4.0-x86_64-i386-64bit-i386-2.7.13-64/tmp5GtYpU/mod.cpp:919:54: > error: arithmetic on a pointer to void. > PyArray_DATA(V3) + data_offset,. > ~~~~~~~~~~~~~~~~ ^. 1 warning and 1 error generated.. ", '[*1 -> > Split{4}(<TensorType(float64, matrix)>, TensorConstant{1}, > <TensorType(int64, vector)>), *1::1, *1::2, *1::3]') > ======/ SNAP /============ > > > Now, I know that this code works because we have it up and running on > another Mac with the same configuration APART from the clang version, which > there is: > Apple LLVM version 7.0.2 (clang-700.1.81) > Target: x86_64-apple-darwin14.5.0 > Thread model: posix > > The code also runs fine on a recent Ubuntu box. > > ==> So, it looks like the newer clang version is to blame for being more > pedantic (?) with comparisons to NULL pointers (in the generated C code). > Now, this behaviour is a little tricky to debug (to say the least). I have > quadruple checked the Python code and it looks fine. The fact that it is > running on two other of out machines and that the original author of it > (Colin Raffel -- all kudos to him for the tutorial code) is using it in his > tutorial tells me that my suspicion is not entirely wrong. > > I tried installing an older version of the command line tools for XCode > (essentially the c-compiler) on my box to run it in parallel to the current > version (which I need for other projects) but that did not work out. > According to the apple developer forum I would need to install the complete > (!) version of an older XCode package, which is not really an option. > > > So, does anyone have a clue / experience / advise on this? > > Many thanks! > Thomas > > -- > > --- > 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. 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