update model_worker.py

model_worker.py

@@ -20,6 +20,7 @@ import uuid
 import traceback
 from functools import partial
 from threading import Thread
+import multiprocessing as mp
 
 import requests
 import torch
@@ -38,6 +39,8 @@ from utils import (
     load_image_from_base64,
 )
 
+mp.set_start_method("spawn", force=True)
+
 worker_id = str(uuid.uuid4())[:6]
 logger = build_logger("model_worker", f"model_worker_{worker_id}.log")
 global_counter = 0