zhiics commented on a change in pull request #5770:
URL: https://github.com/apache/incubator-tvm/pull/5770#discussion_r441850480



##########
File path: python/tvm/contrib/graph_runtime.py
##########
@@ -162,7 +162,11 @@ def set_input(self, key=None, value=None, **params):
             keys = list(params.keys())
             keys.sort(key=lambda x: -np.prod(params[x].shape))
             for k in keys:
-                self._get_input(k).copyfrom(params[k])
+                # TODO(zhiics) Skip the weights for submodule in a better way.
+                # We could get all inputs required by graphruntime first,
+                # we should use MetadataModule for initialization.

Review comment:
       Yeah, we can do some checking at the C++ side as well. We will need to 
change graph runtime later to let it have a "__init" function so that we can 
initialize it with params. And we will need to remove some of the current ways 
to set the params up. For example, the `set_input`  API should not take 
`**params` and the chunk of hacky code will be removed. That needs some more 
thinking and may worth an RFC. 




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