Disable shared memory by default

Shared memory is disabled by default, but can still be enabled by passing
'shared_memory=True' in the constructor for Scheduler.

Author: TheGreatCabbage

scheduler/Scheduler.py

@@ -53,7 +53,7 @@ def __init__(
         dynamic: bool = True,
         cpu_threshold: float = 95,
         cpu_update_interval: float = 5,
-        shared_memory: bool = True,
+        shared_memory: bool = False,
         shared_memory_threshold:int = 1e7,
     ):
         """

test/test_scheduler.py

@@ -58,7 +58,7 @@
 
 def test_shared_memory_numpy():
     """Tests whether `run_blocking()` works correctly."""
-    scheduler = Scheduler()
+    scheduler = Scheduler(shared_memory=True, shared_memory_threshold=0)
 
     args, expected = _get_input_output_numpy()
     for a in args: