Better error msg

theano/gof/link.py

@@ -144,8 +144,11 @@ def raise_with_op(node, thunk=None, exc_info=None, storage_map=None):
         clients = [[c[0] for c in var.clients] for var in node.outputs]
         detailed_err_msg += ("Inputs shapes: %s" % shapes +
                              "\nInputs strides: %s" % strides +
-                             "\nInputs values: %s" % scalar_values +
-                             "\nOutputs clients: %s\n" % clients)
+                             "\nInputs values: %s" % scalar_values)
+        if hasattr(node.op, '__input_name__'):
+            detailed_err_msg += "\nInputs name: %s\n" % str(node.op.__input_name__)
+
+        detailed_err_msg += "\nOutputs clients: %s\n" % clients
     else:
         hints.append(
             "HINT: Use another linker then the c linker to"

theano/sandbox/cuda/dnn.py

@@ -377,6 +377,8 @@ class GpuDnnConv(DnnBase, COp):
     :param descr: the convolution descriptor
     """
     __props__ = ('workmem', 'inplace')
+    __input_name__ = ('image', 'kernel', 'output',
+                      'descriptor', 'alpha', 'beta')
 
     def __init__(self, workmem=None, inplace=False):
         """
@@ -501,6 +503,7 @@ class GpuDnnConvGradW(DnnBase, COp):
 
     """
     __props__ = ('inplace',)
+    __input_name__ = ('image', 'grad', 'output', 'descriptor', 'alpha', 'beta')
 
     def __init__(self, inplace=False):
         COp.__init__(self, ["dnn_base.c", "dnn_conv_base.c", "dnn_gw.c"],
@@ -573,6 +576,8 @@ class GpuDnnConvGradI(DnnBase, COp):
 
     """
     __props__ = ('inplace',)
+    __input_name__ = ('kernel', 'grad', 'output',
+                      'descriptor', 'alpha', 'beta')
 
     def __init__(self, inplace=False):
         COp.__init__(self, ["dnn_base.c", "dnn_conv_base.c", "dnn_gi.c"],