add kwargs to catch any differing args between executors (e.g. out_host)

loopy/execution.py

@@ -674,7 +674,7 @@ class ExecutionWrapperGeneratorBase(object):
                     "%s=None" % idi.name
                     for idi in implemented_data_info
                     if issubclass(idi.arg_class, KernelArgument)
-                    ])
+                    ] + ['**kw_args'])
 
         gen.add_to_preamble("from __future__ import division")
         gen.add_to_preamble("")