Facebook: Reward Function in D2Go

Summary: Pull Request resolved: https://github.com/facebookresearch/d2go/pull/116

Reviewed By: newstzpz

Differential Revision: D30860098

fbshipit-source-id: 5c9422dd91d305193f9b43869f12423660217010

d2go/export/torchscript.py

@@ -164,6 +164,9 @@ class TorchscriptWrapper(nn.Module):
         # TODO: set int8 backend accordingly if needed
         return self.module(*args, **kwargs)
 
+    def get_wrapped_models(self):
+        return self.module
+
 
 def load_torchscript(model_path):
     extra_files = {}
@@ -261,6 +264,9 @@ class TracingAdapterModelWrapper(nn.Module):
         flattened_outputs = self.traced_model(*flattened_inputs)
         return self.outputs_schema(flattened_outputs)
 
+    def get_wrapped_models(self):
+        return self.traced_model
+
 
 def tracing_adapter_wrap_load(old_f):
     def new_f(cls, save_path, **load_kwargs):

d2go/runner/__init__.py

@@ -16,9 +16,12 @@ def create_runner(
     """Constructs a runner instance if class is a d2go runner. Returns class
     type if class is a Lightning module.
     """
-    runner_module_name, runner_class_name = class_full_name.rsplit(".", 1)
-    runner_module = importlib.import_module(runner_module_name)
-    runner_class = getattr(runner_module, runner_class_name)
+    if class_full_name is None:
+        runner_class = GeneralizedRCNNRunner
+    else:
+        runner_module_name, runner_class_name = class_full_name.rsplit(".", 1)
+        runner_module = importlib.import_module(runner_module_name)
+        runner_class = getattr(runner_module, runner_class_name)
     if issubclass(runner_class, LightningModule):
         # Return runner class for Lightning module since it requires config
         # to construct