Refactor setup_training and remove test_mode

pytorch_lightning/accelerators/accelerator.py

@@ -52,6 +52,10 @@ def __init__(self,
     def setup(self, model):
         pass
 
+    def train(self):
+        self.trainer.setup_trainer(self.trainer.model)
+        return self.train_or_test()
+
     def teardown(self):
         # Ensure if necessary all processes are finished
         self.barrier()
@@ -66,6 +70,7 @@ def train_or_test(self):
         if self.trainer.testing:
             results = self.trainer.run_test()
         else:
+            self.trainer.train_loop.setup_training()
             results = self.trainer.train()
         return results
 

pytorch_lightning/accelerators/cpu_accelerator.py

@@ -50,16 +50,6 @@ def setup(self, model):
 
         self.trainer.model = model
 
-    def train(self):
-        model = self.trainer.model
-
-        # set up training routine
-        self.trainer.train_loop.setup_training(model)
-
-        # train or test
-        results = self.train_or_test()
-        return results
-
     def _step(self, model_step: Callable, args):
         if self.trainer.amp_backend == AMPType.NATIVE:
             with torch.cuda.amp.autocast():

pytorch_lightning/accelerators/ddp2_accelerator.py

@@ -186,9 +186,6 @@ def ddp_train(self, process_idx, mp_queue, model):
 
         self.ddp_plugin.on_after_setup_optimizers(self.trainer)
 
-        # set model properties before going into wrapper
-        self.trainer.model_connector.copy_trainer_model_properties(model)
-
         # 16-bit
         model = self.trainer.precision_connector.connect(model)
 
@@ -198,8 +195,7 @@ def ddp_train(self, process_idx, mp_queue, model):
         # allow user to configure ddp
         model = self.configure_ddp(model, device_ids)
 
-        # set up training routine
-        self.trainer.train_loop.setup_training(model)
+        self.trainer.setup_trainer(model)
 
         # train or test
         results = self.train_or_test()

pytorch_lightning/accelerators/ddp_accelerator.py

@@ -285,9 +285,6 @@ def ddp_train(self, process_idx, model):
         # allow for lr schedulers as well
         self.setup_optimizers(model)
 
-        # set model properties before going into wrapper
-        self.trainer.model_connector.copy_trainer_model_properties(model)
-
         # 16-bit
         model = self.trainer.precision_connector.connect(model)
 
@@ -297,9 +294,8 @@ def ddp_train(self, process_idx, model):
         # allow user to configure ddp
         model = self.configure_ddp(model, device_ids)
 
-        # set up training routine
         self.barrier('ddp_setup')
-        self.trainer.train_loop.setup_training(model)
+        self.trainer.setup_trainer(model)
 
         # train or test
         results = self.train_or_test()

pytorch_lightning/accelerators/ddp_cpu_spawn_accelerator.py

@@ -146,9 +146,6 @@ def ddp_train(self, process_idx, mp_queue, model):
 
         self.ddp_plugin.on_after_setup_optimizers(self.trainer)
 
-        # set model properties before going into wrapper
-        self.trainer.model_connector.copy_trainer_model_properties(model)
-
         # 16-bit
         model = self.trainer.precision_connector.connect(model)
 
@@ -158,8 +155,7 @@ def ddp_train(self, process_idx, mp_queue, model):
         # allow user to configure ddp
         model = self.configure_ddp(model, device_ids)
 
-        # set up training routine
-        self.trainer.train_loop.setup_training(model)
+        self.trainer.setup_trainer(model)
 
         # train or test
         results = self.train_or_test()

pytorch_lightning/accelerators/ddp_hpc_accelerator.py

@@ -177,9 +177,6 @@ def ddp_train(self, process_idx, model):
 
         self.ddp_plugin.on_after_setup_optimizers(self.trainer)
 
-        # set model properties before going into wrapper
-        self.trainer.model_connector.copy_trainer_model_properties(model)
-
         # 16-bit
         model = self.trainer.precision_connector.connect(model)
 
@@ -189,8 +186,7 @@ def ddp_train(self, process_idx, model):
         # allow user to configure ddp
         model = self.configure_ddp(model, device_ids)
 
-        # set up training routine
-        self.trainer.train_loop.setup_training(model)
+        self.trainer.setup_trainer(model)
 
         # train or test
         results = self.train_or_test()

pytorch_lightning/accelerators/ddp_spawn_accelerator.py

@@ -161,9 +161,6 @@ def ddp_train(self, process_idx, mp_queue, model, is_master=False, proc_offset=0
 
         self.ddp_plugin.on_after_setup_optimizers(self.trainer)
 
-        # set model properties before going into wrapper
-        self.trainer.model_connector.copy_trainer_model_properties(model)
-
         # 16-bit
         model = self.trainer.precision_connector.connect(model)
 
@@ -173,8 +170,7 @@ def ddp_train(self, process_idx, mp_queue, model, is_master=False, proc_offset=0
         # allow user to configure ddp
         model = self.configure_ddp(model, device_ids)
 
-        # set up training routine
-        self.trainer.train_loop.setup_training(model)
+        self.trainer.setup_trainer(model)
 
         # train or test
         results = self.train_or_test()

pytorch_lightning/accelerators/dp_accelerator.py

@@ -101,16 +101,6 @@ def __init_nvidia_apex(self, model):
 
         return model
 
-    def train(self):
-        model = self.trainer.model
-        # set up training routine
-        self.trainer.train_loop.setup_training(model)
-
-        # train or test
-        results = self.train_or_test()
-
-        return results
-
     def teardown(self):
         # replace the original fwd function
         self.trainer.model.forward = self.model_autocast_original_forward

pytorch_lightning/accelerators/gpu_accelerator.py

@@ -56,16 +56,6 @@ def setup(self, model):
 
         self.trainer.model = model
 
-    def train(self):
-        model = self.trainer.model
-
-        # set up training routine
-        self.trainer.train_loop.setup_training(model)
-
-        # train or test
-        results = self.train_or_test()
-        return results
-
     def _step(self, model_step: Callable, args):
         args[0] = self.to_device(args[0])
 

pytorch_lightning/accelerators/horovod_accelerator.py

@@ -104,8 +104,7 @@ def train(self):
                 # Synchronization will be performed explicitly following backward()
                 stack.enter_context(optimizer.skip_synchronize())
 
-            # set up training routine
-            self.trainer.train_loop.setup_training(self.trainer.model)
+            self.trainer.setup_trainer(self.trainer.model)
 
             # train or test
             results = self.train_or_test()

pytorch_lightning/accelerators/tpu_accelerator.py

@@ -134,8 +134,7 @@ def tpu_train_in_process(self, tpu_core_idx: int, model: LightningModule, traine
         # setup TPU training
         self.__setup_tpu_training(model, trainer)
 
-        # set up training routine
-        self.trainer.train_loop.setup_training(model)
+        self.trainer.setup_trainer(model)
 
         # train or test
         results = self.train_or_test()

pytorch_lightning/trainer/connectors/checkpoint_connector.py

@@ -13,8 +13,8 @@
 # limitations under the License.
 
 import os
-from pathlib import Path
 import re
+from pathlib import Path
 from typing import Optional, Union
 
 import torch
@@ -44,7 +44,7 @@ def __init__(self, trainer):
         # used to validate checkpointing logic
         self.has_trained = False
 
-    def restore_weights(self, model: LightningModule) -> None:
+    def restore_weights(self) -> None:
         """
         Attempt to restore a checkpoint (e.g. weights) in this priority:
         1. from HPC weights
@@ -64,7 +64,7 @@ def restore_weights(self, model: LightningModule) -> None:
             rank_zero_info(f'restored hpc model from: {checkpoint_path}')
 
         # 2. Attempt to restore states from `resume_from_checkpoint` file
-        elif self.trainer.resume_from_checkpoint is not None and not self.trainer.testing:
+        elif self.trainer.resume_from_checkpoint is not None:
             self.restore(self.trainer.resume_from_checkpoint, on_gpu=self.trainer.on_gpu)
 
         # wait for all to catch up

pytorch_lightning/trainer/connectors/logger_connector/logger_connector.py

@@ -208,9 +208,9 @@ def add_progress_bar_metrics(self, metrics):
 
         self.trainer.dev_debugger.track_pbar_metrics_history(metrics)
 
-    def track_metrics_deprecated(self, deprecated_eval_results, using_eval_result, test_mode):
+    def track_metrics_deprecated(self, deprecated_eval_results, using_eval_result):
         self._track_callback_metrics(deprecated_eval_results, using_eval_result)
-        self.__process_eval_epoch_end_results_and_log_legacy(deprecated_eval_results, test_mode)
+        self.__process_eval_epoch_end_results_and_log_legacy(deprecated_eval_results)
 
     def evaluation_epoch_end(self, testing):
         # reset dataloader idx
@@ -239,7 +239,7 @@ def prepare_eval_loop_results(self):
         for dl_idx in range(self.trainer.evaluation_loop.num_dataloaders):
             self.add_to_eval_loop_results(dl_idx, has_been_initialized)
 
-    def get_evaluate_epoch_results(self, test_mode):
+    def get_evaluate_epoch_results(self):
         if not self.trainer.running_sanity_check:
             # log all the metrics as a single dict
             metrics_to_log = self.cached_results.get_epoch_log_metrics()
@@ -249,7 +249,7 @@ def get_evaluate_epoch_results(self, test_mode):
         self.prepare_eval_loop_results()
 
         # log results of test
-        if test_mode and self.trainer.is_global_zero and self.trainer.verbose_test:
+        if self.trainer.testing and self.trainer.is_global_zero and self.trainer.verbose_test:
             print('-' * 80)
             for result_idx, results in enumerate(self.eval_loop_results):
                 print(f'DATALOADER:{result_idx} TEST RESULTS')
@@ -330,7 +330,7 @@ def __process_eval_epoch_end_results_and_log_legacy_update(self, prog_bar_metric
         if len(dataloader_result_metrics) > 0:
             self.eval_loop_results.append(dataloader_result_metrics)
 
-    def __process_eval_epoch_end_results_and_log_legacy(self, eval_results, test_mode):
+    def __process_eval_epoch_end_results_and_log_legacy(self, eval_results):
         if self.trainer.running_sanity_check:
             return
 
@@ -350,7 +350,7 @@ def __process_eval_epoch_end_results_and_log_legacy(self, eval_results, test_mod
                     callback_metrics = result.callback_metrics
 
                     # in testing we don't need the callback metrics
-                    if test_mode:
+                    if self.trainer.testing:
                         callback_metrics = {}
                 else:
                     _, prog_bar_metrics, log_metrics, callback_metrics, _ = self.trainer.process_dict_result(result)