manual merge

theano/sandbox/cuda/opt.py

@@ -604,6 +604,13 @@ def local_gpu_conv(node):
         logical_img_hw=None
         if op.imshp_logical is not None:
             logical_img_hw=op.imshp_logical[1:3]
+            if logical_img_hw != op.imshp[1:3]:
+                # this case is not implemented
+                return None
+        if op.kshp_logical is not None and op.kshp_logical != op.kshp:
+            return None
+        #print op.kshp, op.imshp[1:3]
+        #print op.kshp_logical, logical_img_hw
         ret = GpuConv(border_mode=op.out_mode,
                     subsample=(op.dx, op.dy),
                     logical_img_hw=logical_img_hw,
@@ -619,11 +626,14 @@ def local_gpu_conv(node):
             ret.flops=op.flops
         return ret
 
+
     if node.op == gpu_from_host:
         #gpu_from_host(conv) -> gpu_conv(gpu_from_host)
         host_input = node.inputs[0]
         if host_input.owner and isinstance(host_input.owner.op, conv.ConvOp):
             gpu_conv = GpuConvOp_from_ConvOp(host_input.owner.op)
+            if gpu_conv is None:
+                return
             img, kern = host_input.owner.inputs
             #in some case the ConvOp broadcast the last 2 dimensions differently then the gpu ConvOp
             return [tensor.patternbroadcast(gpu_conv(gpu_from_host(img), gpu_from_host(kern)),
@@ -636,6 +646,8 @@ def local_gpu_conv(node):
         kern_on_gpu = (kern.owner and kern.owner.op == host_from_gpu)
         if img_on_gpu or kern_on_gpu:
             gpu_conv = GpuConvOp_from_ConvOp(node.op)
+            if gpu_conv is None:
+                return
             #in some case the ConvOp broadcast the last 2 dimensions differently then the gpu ConvOp
             return [tensor.patternbroadcast(host_from_gpu(gpu_conv(gpu_from_host(img),
                                                                    gpu_from_host(kern))),

theano/sandbox/rng_mrg.py

@@ -161,8 +161,6 @@ class mrg_uniform_base(Op):
     def grad(self,inputs,ograd):
         return [None for i in inputs]
 
-    def c_code_cache_version(self):
-        return (2,)
 
 class mrg_uniform(mrg_uniform_base):
     #CPU VERSION
@@ -354,6 +352,8 @@ class mrg_uniform(mrg_uniform_base):
         }
         //////// </ code generated by mrg_uniform>
         """ %locals()
+    def c_code_cache_version(self):
+        return (1,)
 
 class GPU_mrg_uniform(mrg_uniform_base):
     #GPU VERSION
@@ -564,6 +564,8 @@ class GPU_mrg_uniform(mrg_uniform_base):
 
         //////// </ code generated by mrg_uniform>
         """ %locals()
+    def c_code_cache_version(self):
+        return (3,)
 
 class MRG_RandomStreams(object):
     """Module component with similar interface to numpy.random (numpy.random.RandomState)"""
@@ -639,7 +641,8 @@ class MRG_RandomStreams(object):
                 r = r/6 # chosen as fastest for rbm_benchmark
             return r
 
-        print >> sys.stderr, "MRG_RandomStreams Can't determine #streams from size (%s), guessing 30*256"%str(size)
+        print >> sys.stderr, ("MRG_RandomStreams Can't determine #streams from "
+                "size (%s), guessing 30*256")%str(size)
         return 30*256
 
     def pretty_return(self, node_rstate, new_rstate, sample):
@@ -658,12 +661,17 @@ class MRG_RandomStreams(object):
         ndim may be a plain integer to supplement the missing
         information.
 
-        :param: size: Can be a list of integer or Theano variable(ex: the shape of other Theano Variable)
-                      TODO: can size be None?
+        :param: size: Can be a list of integer or Theano variable
+                (ex: the shape of other Theano Variable)
+                TODO: can size be None?
         """
         if isinstance(size, tuple):
-            assert all([isinstance(i,int) or isinstance(i,Variable) for i in size]), "size must be a tuple of int or a Theano variable"
-        else: assert isinstance(size, Variable) and size.ndim==1, "size must be a tuple of int or a Theano variable"
+            msg = "size must be a tuple of int or a Theano variable"
+            assert all([isinstance(i,int) or isinstance(i,Variable) 
+                for i in size]), msg
+        else: 
+            msg = "size must be a tuple of int or a Theano variable"
+            assert isinstance(size, Variable) and size.ndim==1, msg
 
         if nstreams is None:
             nstreams = self.n_streams(size)
@@ -677,12 +685,15 @@ class MRG_RandomStreams(object):
             tmp_float_buf = numpy.frombuffer(rstates.data, dtype='float32')
             assert tmp_float_buf.shape == rstates.shape
             assert tmp_float_buf.data[:24] == rstates.data[:24]
-            node_rstate = float32_shared_constructor(tmp_float_buf) # transfer to device
+            # transfer to device
+            node_rstate = float32_shared_constructor(tmp_float_buf)
             assert isinstance(node_rstate.type, CudaNdarrayType)
 
-            # we can't use the normal mrg_uniform constructor + later optimization
+            # we can't use the normal mrg_uniform constructor + later 
+            # optimization
             # because of the tmp_float_buf hack above.  There is
-            # currently no Theano node that will do a frombuffer reinterpretation.
+            # currently no Theano node that will do a frombuffer 
+            # reinterpretation.
             u = self.pretty_return(node_rstate,
                     *GPU_mrg_uniform.new(node_rstate, ndim, dtype, size))
         else:
@@ -706,13 +717,15 @@ class MRG_RandomStreams(object):
 
     def multinomial(self, size=None, n=1, pvals=None, ndim=None, dtype='int64'):
         """
-        Sample `n` (currently `n` needs to be 1) times from a multinomial distribution defined by
-        probabilities pvals.
+        Sample `n` (currently `n` needs to be 1) times from a multinomial 
+        distribution defined by probabilities pvals.
 
-        Example : pvals = [[.98,.01, .01], [.01, .98 .01]] will probably result in [[1,0,0],[0,1,0]].
+        Example : pvals = [[.98,.01, .01], [.01, .98 .01]] will probably result
+        in [[1,0,0],[0,1,0]].
 
         .. note::
-            `size` and `ndim` are only there keep the same signature as other uniform, binomial, normal, etc.
+            `size` and `ndim` are only there keep the same signature as other 
+            uniform, binomial, normal, etc.
             todo : adapt multinomial to take that into account
         """
         if pvals is None:
@@ -743,7 +756,8 @@ class MRG_RandomStreams(object):
                 n_samples += 1
                 evened = True
         else:
-            n_samples = prod(size)+(prod(size)%2)#if even, don't change, if odd, +1
+            #if even, don't change, if odd, +1
+            n_samples = prod(size)+(prod(size)%2)
         flattened = self.uniform(size=(n_samples,), dtype=dtype)
 
         if constant: