It works. When I install theano 1.0, it don't report segmentation fault. But the problem is that I install theano to use lasagne and pylearn2, which has't support theano1.0 (it report"ImportError: No module named six.moves”）, do you know how to resolve this?
Thank you very much. 在 2017年6月30日星期五 UTC+8下午8:36:49，nouiz写道： > > Install the dev version of Theano. It contains segmentation fault fixes. > > If that don't work, tell us, but I think it should work. > > Le ven. 30 juin 2017 06:00, noodles <ilovenoo...@gmail.com <javascript:>> > a écrit : > >> Hello, >> >> I encounter a strange problem when using theano. These days I bought >> a new computer and install theano on it, and I can even import it in >> python with no error, but everytime I create a function, it corrupted >> with "Segmentation fault(core dumped)". Below is the detail: >> I have installed theano on another two old machine, and they >> works well. This new machine is : CPU: intel 7700; GPU 2xGTX1080Ti, OS: >> ubuntu16.04. CUDA 8.0, cudnn 5.1 .I use miniconda2 to install theano( >> conda install theano), python 2.7, theano 0.9.0 >> >> when I import theano in python, the output is: >> >>> *nice@fat01:~$ python* >>> *Python 2.7.13 |Continuum Analytics, Inc.| (default, Dec 20 2016, >>> 23:09:15) * >>> *[GCC 4.4.7 20120313 (Red Hat 4.4.7-1)] on linux2* >>> *Type "help", "copyright", "credits" or "license" for more information.* >>> *Anaconda is brought to you by Continuum Analytics.* >>> *Please check out: http://continuum.io/thanks < >>> http://continuum.io/thanks> >>> and https://anaconda.org <https://anaconda.org>* >>> *>>> import theano* >>> *Using cuDNN version 5110 on context None* >>> *Mapped name None to device cuda1: GeForce GTX 1080 Ti (0000:02:00.0)* >>> *>>> * >> >> >> then I input the code from the exercise of >> http://deeplearning.net/software/theano/tutorial/using_gpu.html#gpuarray >> >> ================================================================================ >> >> *import numpy* >> *import theano* >> *import theano.tensor as T* >> *rng = numpy.random* >> *N = 400* >> *feats = 784* >> *D = (rng.randn(N, feats).astype(theano.config.floatX),* >> *rng.randint(size=N,low=0, high=2).astype(theano.config.floatX))* >> *training_steps = 10000* >> *# Declare Theano symbolic variables* >> *x = T.matrix("x")* >> *y = T.vector("y")* >> *w = theano.shared(rng.randn(feats).astype(theano.config.floatX), >> name="w")* >> *b = theano.shared(numpy.asarray(0., dtype=theano.config.floatX), >> name="b")* >> *x.tag.test_value = D[0]* >> *y.tag.test_value = D[1]* >> *# Construct Theano expression graph* >> *p_1 = 1 / (1 + T.exp(-T.dot(x, w)-b)) # Probability of having a one* >> *prediction = p_1 > 0.5 # The prediction that is done: 0 or 1* >> *xent = -y*T.log(p_1) - (1-y)*T.log(1-p_1) # Cross-entropy* >> *cost = xent.mean() + 0.01*(w**2).sum() # The cost to optimize* >> *gw,gb = T.grad(cost, [w,b])* >> *# Compile expressions to functions* >> *train = theano.function(* >> * inputs=[x,y],* >> * outputs=[prediction, xent],* >> * updates=[(w, w-0.01*gw), (b, b-0.01*gb)],* >> * name = "train")* >> >> >> ============================================================================== >> >> It corrupted at this line. >> I have run numpy.test() and scipy.test() and they work well, but when I >> run theano.test(), it corrupted too. The full log is too long, so I just >> post >> the end of it: >> >> */home/nice/miniconda2/lib/python2.7/site-packages/ >>> theano/compile/nanguardmode.py:168: >>> RuntimeWarning: All-NaN axis encountered* >>> * return np.isinf(np.nanmax(arr)) or np.isinf(np.nanmin(arr))* >>> *.E......................................../home/nice/ >>> miniconda2/lib/python2.7/site-packages/theano/gof/vm.py:851: >>> UserWarning: CVM does not support memory profile, using Stack VM.* >>> * 'CVM does not support memory profile, using Stack VM.')* >>> *...........SS.............0.930614401665* >>> *0.930614401665* >>> *0.930614401665* >>> *0.930614401665* >>> *........................................................... >>> ............................................................ >>> ...................................E/home/nice/miniconda2/ >>> lib/python2.7/site-packages/theano/gof/vm.py:854: >>> UserWarning: LoopGC does not support partial evaluation, using Stack VM.* >>> * 'LoopGC does not support partial evaluation, '* >>> *.....EEEESegmentation fault (core dumped)* >> >> >> >> I hope someone can help me. >> >> -- >> >> --- >> 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 theano-users...@googlegroups.com <javascript:>. >> 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 theano-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
