Make model daemons Python processes (#34880)

system/manager/process.py

@@ -221,8 +221,12 @@ class PythonProcess(ManagerProcess):
     if self.proc is not None:
       return
 
+    # TODO: this is just a workaround for this tinygrad check:
+    # https://github.com/tinygrad/tinygrad/blob/ac9c96dae1656dc220ee4acc39cef4dd449aa850/tinygrad/device.py#L26
+    name = self.name if "modeld" not in self.name else "MainProcess"
+
     cloudlog.info(f"starting python {self.module}")
-    self.proc = Process(name=self.name, target=self.launcher, args=(self.module, self.name))
+    self.proc = Process(name=name, target=self.launcher, args=(self.module, self.name))
     self.proc.start()
     self.watchdog_seen = False
     self.shutting_down = False