diff --git a/Appli-iso3dfd/test_nb_threads.py b/Appli-iso3dfd/test_nb_threads.py
index 07b38c5a1553ce8a6b9f0bc9625907d8eb3995fd..f2f1121e1cb18c9fcbd35e1874649bfef469055f 100644
--- a/Appli-iso3dfd/test_nb_threads.py
+++ b/Appli-iso3dfd/test_nb_threads.py
@@ -5,13 +5,13 @@ import os
 import launcher_SUBP
 import tools
 
-throughputs = []
+throughputs = [0 for i in range(4,9)]
 mean_throughtputs = []
 launcher_SUBP.compileSUBP(optimization="-O3", simd="avx512")
 
-for nb_threads in range(4,9):
+for nb_threads in range(0,5):
     for iter in range(6):
-        res = subprocess.run("mpirun -np 1 -map-by ppr:1:socket -bind-to socket bin/* 512 256 512 " + str(nb_threads) + " 100 128 20 9", shell=True, 
+        res = subprocess.run("mpirun -np 1 -map-by ppr:1:socket -bind-to socket bin/* 512 256 512 " + str(nb_threads+4) + " 100 128 20 9", shell=True, 
                             stdout=subprocess.PIPE)
         
         for line in str(res.stdout,'utf-8').split('\n'):