[CRASH] Make sure the var is on the GPU.

theano/sandbox/cuda/nnet.py

@@ -27,6 +27,9 @@ class GpuCrossentropySoftmaxArgmax1HotWithBias(GpuOp):
 
     def make_node(self, x, b, y_idx):
         #N.B. won't work when we don't cast y_idx to float anymore
+        x = as_cuda_ndarray_variable(x)
+        b = as_cuda_ndarray_variable(b)
+        y_idx = as_cuda_ndarray_variable(y_idx)
         nll = y_idx.type()
         sm = x.type()
         am = y_idx.type()
@@ -237,6 +240,9 @@ class GpuCrossentropySoftmax1HotWithBiasDx(GpuOp):
         return self.__class__.__name__
 
     def make_node(self, dy, sm, y_idx):
+        dy = as_cuda_ndarray_variable(dy)
+        sm = as_cuda_ndarray_variable(sm)
+        y_idx = as_cuda_ndarray_variable(y_idx)
         return Apply(self, [dy, sm, y_idx], [sm.type()])
 
     def c_code_cache_version(self):
@@ -379,6 +385,7 @@ class GpuSoftmax(GpuOp):
         return self.__class__.__name__
 
     def make_node(self, x):
+        x = as_cuda_ndarray_variable(x)
         return Apply(self, [x], [x.type()])
 
     def infer_shape(self, node, shape):
@@ -543,6 +550,7 @@ class GpuSoftmaxWithBias(GpuOp):
         return self.__class__.__name__
 
     def make_node(self, x, b):
+        x = as_cuda_ndarray_variable(x)
         return Apply(self, [x, b], [x.type()])
 
     def infer_shape(self, node, shape):