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. 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