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.
