set max threads of numexpr to improve performance and ommit warnings

startup.py

@@ -5,6 +5,14 @@ import sys
 import os
 from pprint import pprint
 
+# 设置numexpr最大线程数，默认为CPU核心数
+try:
+    import numexpr
+    n_cores = numexpr.utils.detect_number_of_cores()
+    os.environ["NUMEXPR_MAX_THREADS"] = str(n_cores)
+except:
+    pass
+
 sys.path.append(os.path.dirname(os.path.dirname(__file__)))
 from configs.model_config import EMBEDDING_DEVICE, EMBEDDING_MODEL, llm_model_dict, LLM_MODEL, LLM_DEVICE, LOG_PATH, \
     logger