Rename _test method in generator.py (#421)

Author: JenniferWang

src/forge/actors/generator.py

@@ -492,16 +492,14 @@ async def shutdown(  # pyright: ignore[reportIncompatibleMethodOverride]
         await stop_proc_mesh(actor._generator_proc)
 
     @endpoint
-    async def _test_save_model_params(self):
-        """Save model parameters before weight update, used for tesing purposes only."""
-        logger.info("[Generator] save model parameters for testing.")
-        await self.worker._test_save_model_params.call()
+    async def save_model_params(self):
+        """Used for debugging purpose. Save model parameters before weight update."""
+        await self.worker.save_model_params.call()
 
     @endpoint
-    async def _test_validate_model_params(self, validate_fn):
-        """Validate updated model params using validate_fn."""
-        logger.info("[Generator] start validating model parameters.")
-        return await self.worker._test_validate_model_params.call(validate_fn)
+    async def validate_model_params(self, validate_fn):
+        """Used for debugging purpose. Validate saved params using validate_fn."""
+        return await self.worker.validate_model_params.call(validate_fn)
 
 
 @dataclass
@@ -514,8 +512,6 @@ class GeneratorWorker(ForgeActor):
     """
 
     vllm_config: VllmConfig
-    # TODO: Remove below param
-    _test_prev_params = {}
 
     @endpoint
     async def setup(self):
@@ -605,20 +601,19 @@ async def update_weights(self, version: int) -> None:
         t.stop()
 
     @endpoint
-    async def _test_save_model_params(self):
-        """Save model parameters before weight update, used for tesing purposes only."""
-        logger.info("[GeneratorWorker] save model parameters for testing.")
+    async def save_model_params(self):
+        """Used for debugging purposes. Save model parameters before weight update."""
+        self._debug_saved_params = {}
         for name, param in self.worker.model_runner.model.named_parameters():
-            self._test_prev_params[name] = param.detach().cpu()
+            self._debug_saved_params[name] = param.detach().cpu()
         logger.info(
             "[GeneratorWorker] finished saving model parameters, len = %d",
-            len(self._test_prev_params),
+            len(self._debug_saved_params),
         )
 
     @endpoint
-    async def _test_validate_model_params(self, validate_fn):
-        """Validate updated model params using validate_fn."""
-        logger.info("[GeneratorWorker] start validating model parameters.")
+    async def validate_model_params(self, validate_fn):
+        """Used for debugging purposes. Validate saved params using validate_fn."""
         return validate_fn(
-            self._test_prev_params, self.worker.model_runner.model, logger
+            self._debug_saved_params, self.worker.model_runner.model, logger
         )

tests/integration_tests/test_policy_update.py

@@ -254,18 +254,18 @@ async def test_sanity_check(self, _setup_and_teardown):
         # Setting everything to zero
         await rl_trainer.zero_out_model_states.call()
         await rl_trainer.push_weights.call(policy_version=v1)
-        await policy._test_save_model_params.fanout()
+        await policy.save_model_params.fanout()
 
         # Sanity check that before update all the tests pass
-        all_errs = await policy._test_validate_model_params.fanout(
+        all_errs = await policy.validate_model_params.fanout(
             _test_validate_params_unchanged
         )
         for errs in all_errs:
             for _, e in errs.items():
                 assert not e, f"Validation failed with exception: {e}"
 
         await policy.update_weights.fanout(version=v1)
-        all_errs = await policy._test_validate_model_params.fanout(
+        all_errs = await policy.validate_model_params.fanout(
             _test_validate_params_all_zeros
         )
         for errs in all_errs:
@@ -274,7 +274,7 @@ async def test_sanity_check(self, _setup_and_teardown):
 
         # Reloading v0, getting back original weights
         await policy.update_weights.fanout(version=v0)
-        all_errs = await policy._test_validate_model_params.fanout(
+        all_errs = await policy.validate_model_params.fanout(
             _test_validate_params_unchanged
         )
         for errs in all_errs: