Fix pytorch#2343 (pytorch#2344)

* fix pytorch#2343

* update docstring

* add comment

* fix docstrings

* remove trailing whitespace

Co-authored-by: vfdev <vfdev.5@gmail.com>

ignite/contrib/handlers/clearml_logger.py

@@ -52,7 +52,8 @@ class ClearMLLogger(BaseLogger):
         kwargs: Keyword arguments accepted from
             `clearml.Task
             <https://clear.ml/docs/latest/docs/references/sdk/task#taskinit>`_.
-            All arguments are optional.
+            All arguments are optional. If a ClearML Task has already been created,
+            kwargs will be ignored and the current ClearML Task will be used.
 
     Examples:
         .. code-block:: python
@@ -147,12 +148,15 @@ def __setattr__(self, attr: str, val: Any) -> None:
 
             self._task = _Stub()
         else:
-            self._task = Task.init(
-                project_name=kwargs.get("project_name"),
-                task_name=kwargs.get("task_name"),
-                task_type=kwargs.get("task_type", Task.TaskTypes.training),
-                **experiment_kwargs,
-            )
+            # Try to retrieve current the ClearML Task before trying to create a new one
+            self._task = Task.current_task()
+            if self._task is None:
+                self._task = Task.init(
+                    project_name=kwargs.get("project_name"),
+                    task_name=kwargs.get("task_name"),
+                    task_type=kwargs.get("task_type", Task.TaskTypes.training),
+                    **experiment_kwargs,
+                )
 
         self.clearml_logger = self._task.get_logger()