Theano Error: 'TensorVariable' object has no attribute 'cast'

[ddofer]

Hi,
I'm trying to run the "example" on my own data.

After fitting the tokenizer, I get a big, long list of error messages from Theano.
Background: Windows 8.1. Anaconda + Python 2.7 64 bit. Latest Theano version, runs on GPU.
Passage installed from Pip.

Code:
tokenizer = Tokenizer( min_df=1, lowercase=False, character=False, max_features=10000)
X_train = tokenizer.fit_transform(X_train)
X_test = tokenizer.transform(X_test)
layers = [
Embedding(size=128, n_features=tokenizer.n_features),
GatedRecurrent(size=256, activation='tanh', gate_activation='steeper_sigmoid', init='orthogonal', seq_output=False),
Dense(size=1, activation='sigmoid', init='orthogonal') # sigmoid for binary classification
]
model = RNN(layers=layers, cost='bce')

Output:

'
ERROR (theano.gof.opt): Optimization failure due to: local_gpu_advanced_subtensor1
ERROR:theano.gof.opt:Optimization failure due to: local_gpu_advanced_subtensor1
ERROR (theano.gof.opt): TRACEBACK:
ERROR:theano.gof.opt:TRACEBACK:
ERROR (theano.gof.opt): Traceback (most recent call last):
File "d:\git\theano\theano\gof\opt.py", line 1485, in process_node
replacements = lopt.transform(node)
File "d:\git\theano\theano\sandbox\cuda\opt.py", line 980, in local_gpu_advanced_subtensor1
return [host_from_gpu(GpuAdvancedSubtensor1()(gpu_x, coords))]
File "d:\git\theano\theano\gof\op.py", line 507, in call
node = self.make_node(inputs, **kwargs)
File "d:\git\theano\theano\sandbox\cuda\basic_ops.py", line 2570, in make_node
ilist = ilist.cast('int64')
AttributeError: 'TensorVariable' object has no attribute 'cast'

ERROR:theano.gof.opt:Traceback (most recent call last):
File "d:\git\theano\theano\gof\opt.py", line 1485, in process_node
replacements = lopt.transform(node)
File "d:\git\theano\theano\sandbox\cuda\opt.py", line 980, in local_gpu_advanced_subtensor1
return [host_from_gpu(GpuAdvancedSubtensor1()(gpu_x, coords))]
File "d:\git\theano\theano\gof\op.py", line 507, in call
node = self.make_node(inputs, **kwargs)
File "d:\git\theano\theano\sandbox\cuda\basic_ops.py", line 2570, in make_node
ilist = ilist.cast('int64')
AttributeError: 'TensorVariable' object has no attribute 'cast'

ERROR (theano.gof.opt): Optimization failure due to: local_gpu_advanced_subtensor1
ERROR:theano.gof.opt:Optimization failure due to: local_gpu_advanced_subtensor1
ERROR (theano.gof.opt): TRACEBACK:
ERROR:theano.gof.opt:TRACEBACK:
ERROR (theano.gof.opt): Traceback (most recent call last):
File "d:\git\theano\theano\gof\opt.py", line 1485, in process_node
replacements = lopt.transform(node)
File "d:\git\theano\theano\sandbox\cuda\opt.py", line 974, in local_gpu_advanced_subtensor1
return [GpuAdvancedSubtensor1()(as_cuda_ndarray_variable(x), coords)]
File "d:\git\theano\theano\gof\op.py", line 507, in call
node = self.make_node(inputs, **kwargs)
File "d:\git\theano\theano\sandbox\cuda\basic_ops.py", line 2570, in make_node
ilist = ilist.cast('int64')
AttributeError: 'TensorVariable' object has no attribute 'cast'

ERROR:theano.gof.opt:Traceback (most recent call last):
File "d:\git\theano\theano\gof\opt.py", line 1485, in process_node
replacements = lopt.transform(node)
File "d:\git\theano\theano\sandbox\cuda\opt.py", line 974, in local_gpu_advanced_subtensor1
return [GpuAdvancedSubtensor1()(as_cuda_ndarray_variable(x), coords)]
File "d:\git\theano\theano\gof\op.py", line 507, in call
node = self.make_node(inputs, **kwargs)
File "d:\git\theano\theano\sandbox\cuda\basic_ops.py", line 2570, in make_node
ilist = ilist.cast('int64')
AttributeError: 'TensorVariable' object has no attribute 'cast'

ERROR (theano.gof.opt): Optimization failure due to: local_gpu_advanced_subtensor1
ERROR:theano.gof.opt:Optimization failure due to: local_gpu_advanced_subtensor1
ERROR (theano.gof.opt): TRACEBACK:
ERROR:theano.gof.opt:TRACEBACK:
ERROR (theano.gof.opt): Traceback (most recent call last):
File "d:\git\theano\theano\gof\opt.py", line 1485, in process_node
replacements = lopt.transform(node)
File "d:\git\theano\theano\sandbox\cuda\opt.py", line 974, in local_gpu_advanced_subtensor1
return [GpuAdvancedSubtensor1()(as_cuda_ndarray_variable(x), coords)]
File "d:\git\theano\theano\gof\op.py", line 507, in call
node = self.make_node(inputs, **kwargs)
File "d:\git\theano\theano\sandbox\cuda\basic_ops.py", line 2570, in make_node
ilist = ilist.cast('int64')
AttributeError: 'TensorVariable' object has no attribute 'cast'

ERROR:theano.gof.opt:Traceback (most recent call last):
File "d:\git\theano\theano\gof\opt.py", line 1485, in process_node
replacements = lopt.transform(node)
File "d:\git\theano\theano\sandbox\cuda\opt.py", line 974, in local_gpu_advanced_subtensor1
return [GpuAdvancedSubtensor1()(as_cuda_ndarray_variable(x), coords)]
File "d:\git\theano\theano\gof\op.py", line 507, in call
node = self.make_node(inputs, **kwargs)
File "d:\git\theano\theano\sandbox\cuda\basic_ops.py", line 2570, in make_node
ilist = ilist.cast('int64')
AttributeError: 'TensorVariable' object has no attribute 'cast'
'

• This continues for hundreds of cases, repeating the error.
  Thanks!

[ddofer]

Prediction also doesn't work of course.
model.fit(X_train,y_train)
Output:

---

ValueError Traceback (most recent call last)
in ()
----> 1 model.fit(X_train,y_train)

C:\Anaconda\lib\site-packages\passage\models.pyc in fit(self, trX, trY, batch_size, n_epochs, len_filter, snapshot_freq, path)
79 for e in range(n_epochs):
80 epoch_costs = []
---> 81 for xmb, ymb in self.iterator.iterXY(trX, trY):
82 c = self._train(xmb, ymb)
83 epoch_costs.append(c)

C:\Anaconda\lib\site-packages\passage\iterators.pyc in iterXY(self, X, Y)
67 for xmb, ymb in mb_chunks:
68 xmb = padded(xmb)
---> 69 yield self.x_dtype(xmb), self.y_dtype(ymb)

C:\Anaconda\lib\site-packages\passage\theano_utils.pyc in floatX(X)
6
7 def floatX(X):
----> 8 return np.asarray(X, dtype=theano.config.floatX)
9
10 def sharedX(X, dtype=theano.config.floatX, name=None):

C:\Anaconda\lib\site-packages\numpy\core\numeric.pyc in asarray(a, dtype, order)
460
461 """
--> 462 return array(a, dtype, copy=False, order=order)
463
464 def asanyarray(a, dtype=None, order=None):

ValueError: could not convert string to float: C

[youralien]

Tried looking up your error,

AttributeError: 'TensorVariable' object has no attribute 'cast'

and it might be related to the issue encountered on this stack overflow post:
http://stackoverflow.com/questions/19489259/accessing-data-of-a-theano-shared-variable

Try updating Theano again through conda

conda update conda
conda update Theano

or perhaps set DYLD_FALLBACK_LIBRARY_PATH="/Users/Me/anaconda/lib" per the stack overflow question? Please let me know how it goes, getting packages working on different systems is always a challenge that is not fun, IMO!

[ddofer]

That worked, thanks!

On Fri, Aug 7, 2015 at 8:24 AM, Ryan Louie [email protected] wrote:

Tried looking up your error,

AttributeError: 'TensorVariable' object has no attribute 'cast'

and it might be related to the issue encountered on this stack overflow
post:

http://stackoverflow.com/questions/19489259/accessing-data-of-a-theano-shared-variable

Try updating Theano again through conda

conda update conda
conda update Theano

or perhaps set DYLD_FALLBACK_LIBRARY_PATH="/Users/Me/anaconda/lib" per
the stack overflow question? Please let me know how it goes, getting
packages working on different systems is always a challenge that is not
fun, IMO!

—
Reply to this email directly or view it on GitHub
#38 (comment)
.

Dan Ofer - דן עופר
Publications http://scholar.google.co.il/citations?hl=en&user=uDx2ItYAAAAJ

Photography
http://picasaweb.google.com/ddofer
http://500px.com/DanOfer