Make compiler toolkit works with checkpoint

The current CompileModule will result in an "inner" prefix for everything. This
PR fixes it by overloading the methods.


ghstack-source-id: 3be8074
Pull-Request: #2030

Author: fegin

torchtitan/experiments/compiler_toolkit/graph_utils.py

@@ -6,7 +6,7 @@
 
 import contextlib
 from pathlib import Path
-from typing import Callable, List, Optional
+from typing import Any, Callable, List, Optional
 
 import torch
 from torch._dynamo.functional_export import dynamo_graph_capture_for_export
@@ -168,6 +168,18 @@ def __delattr__(self, name: str) -> None:
         else:
             super().__delattr__(name)
 
+    def state_dict(self, *args, **kwargs) -> Any:
+        return self.inner.state_dict(*args, **kwargs)
+
+    def load_state_dict(self, *args, **kwargs) -> Any:
+        return self.inner.load_state_dict(*args, **kwargs)
+
+    def name_parameters(self, *args, **kwargs) -> Any:
+        return self.inner.named_parameters(*args, **kwargs)
+
+    def parameters(self, *args, **kwargs) -> Any:
+        return self.inner.parameters(*args, **kwargs)
+
     def forward(self, *args, **kwargs):
         assert "forward" not in self._overrides, "forward cannot be overridden"