diff --git a/examples/deepseek/ptq.py b/examples/deepseek/ptq.py
index 06407121..c213eb27 100644
--- a/examples/deepseek/ptq.py
+++ b/examples/deepseek/ptq.py
@@ -229,6 +229,15 @@ def load_deepseek_model(model_config: str, model_path: str, batch_size: int):
     return model
 
 
+def end_process():
+    world_size = int(os.getenv("WORLD_SIZE", "1"))
+    rank = int(os.getenv("RANK", "0"))
+    local_rank = int(os.getenv("LOCAL_RANK", "0"))
+    if world_size > 1:
+        if dist.is_initialized():
+            dist.destroy_process_group()
+
+
 def ptq(
     model,
     tokenizer,
@@ -364,3 +373,4 @@ def state_dict_filter(state_dict):
     )
     model = ptq(model, tokenizer, args.quant_cfg, args.batch_size, args.calib_size)
     save_amax_and_quant_config(model, args.output_path, not args.disable_fp8_kvcache)
+    end_process()