debugmode now checks strides all the time, with the option of raising an…

theano/compile/debugmode.py

@@ -371,14 +371,18 @@ def _is_function_output(node):
 def _is_used_in_graph(node):
     return not(_is_function_output(node) or node.clients==[])
 
-def _check_strides_match(a, b):
+def _check_strides_match(a, b, raise_on_err, op):
     try:
         strides_eq = a.strides == b.strides
     except:
         return # no strides
 
     if not strides_eq:
-        raise TypeError('BAD STRIDES', a.strides, b.strides)
+        e = TypeError('Stride mismatch', (a.shape, b.shape, a.strides, b.strides, str(op)))
+        if raise_on_err:
+            raise e
+        else:
+            print >> sys.stderr, 'WARNING:', e
 
 def _lessbroken_deepcopy(a):
     """
@@ -888,8 +892,8 @@ class _Linker(gof.link.LocalLinker):
                                 raise InvalidValueError(r, storage_map[r][0])
 
                             # check for stride correctness if we're doing that
-                            if self.maker.mode.require_matching_strides:
-                                _check_strides_match(r_vals[r], storage_map[r][0])
+                            _check_strides_match(r_vals[r], storage_map[r][0],
+                                self.maker.mode.require_matching_strides, node.op)
 
                         _check_inputs(node, storage_map, r_vals, dr_vals, active_order_set,
                                 clobber_dr_vals=False)