Minor change for ParallelLoop

rlmeta/core/loop.py

@@ -271,6 +271,10 @@ def seed(self) -> Optional[int]:
         return self._seed
 
     def run(self) -> NoReturn:
+        self.start()
+        self.join()
+
+    def start(self) -> None:
         processes = []
         for loop in self._async_loops:
             loop.init_launching()
@@ -280,9 +284,6 @@ def run(self) -> NoReturn:
             process.start()
         self._processes = processes
 
-    def start(self) -> None:
-        self.run()
-
     def join(self) -> None:
         for process in self._processes:
             process.join()