diff --git a/dpgen/generator/run.py b/dpgen/generator/run.py
index bb7baa2f7..02bff6375 100644
--- a/dpgen/generator/run.py
+++ b/dpgen/generator/run.py
@@ -3243,6 +3243,8 @@ def post_fp_vasp (iter_index,
                         assert(use_ele_temp)
                         ele_temp = job_data['ele_temp']
                         all_te.append(ele_temp)
+            elif len(_sys) >= 2:
+                raise RuntimeError("The vasp parameter NSW should be set as 1") 
             else:
                 icount+=1
         all_te = np.array(all_te)