[OTE] Comment out time.sleep(2) in EpochRunnerWithCancel (#1174)

* Remove time.sleep(2) in EpochRunnerWithCancel
Co-authored-by: eunwoosh <eunwoo.shin@intel.com>

Author: JihwanEom

external/mmdetection/detection_tasks/extension/utils/runner.py

@@ -57,7 +57,8 @@ def train(self, data_loader: DataLoader, **kwargs):
         self.data_loader = data_loader
         self._max_iters = self._max_epochs * len(self.data_loader)
         self.call_hook('before_train_epoch')
-        time.sleep(2)  # Prevent possible deadlock during epoch transition
+        # TODO: uncomment below line or resolve root cause of deadlock issue if multi-GPUs need to be supported.
+        # time.sleep(2)  # Prevent possible multi-gpu deadlock during epoch transition
         for i, data_batch in enumerate(self.data_loader):
             self._inner_iter = i
             self.call_hook('before_train_iter')

external/mmsegmentation/segmentation_tasks/extension/utils/runner.py

@@ -61,7 +61,8 @@ def train(self, data_loader: DataLoader, **kwargs):
         self.data_loader = data_loader
         self._max_iters = self._max_epochs * len(self.data_loader)
         self.call_hook('before_train_epoch')
-        time.sleep(2)  # Prevent possible deadlock during epoch transition
+        # TODO: uncomment below line or resolve root cause of deadlock issue if multi-GPUs need to be supported.
+        # time.sleep(2)  # Prevent possible multi-gpu deadlock during epoch transition
         for i, data_batch in enumerate(self.data_loader):
             self._inner_iter = i
             self.call_hook('before_train_iter')

external/model-preparation-algorithm/mpa_tasks/utils/runner.py

@@ -50,7 +50,8 @@ def train(self, data_loader: DataLoader, **kwargs):
         self.data_loader = data_loader
         self._max_iters = self._max_epochs * len(self.data_loader)
         self.call_hook('before_train_epoch')
-        time.sleep(2)  # Prevent possible deadlock during epoch transition
+        # TODO: uncomment below line or resolve root cause of deadlock issue if multi-GPUs need to be supported.
+        # time.sleep(2)  # Prevent possible multi-gpu deadlock during epoch transition
         for i, data_batch in enumerate(self.data_loader):
             self._inner_iter = i
             self.call_hook('before_train_iter')