diff --git a/pyposeidon/misc/telemac2d.cas b/pyposeidon/misc/telemac2d.cas
index ded48a0a..20d492b5 100755
--- a/pyposeidon/misc/telemac2d.cas
+++ b/pyposeidon/misc/telemac2d.cas
@@ -13,6 +13,7 @@ RESULTS FILE =  '{{out_2D_file}}'
 BINARY ATMOSPHERIC DATA FILE = 
 '{{inp_wind_file}}'
 /CHECKING THE MESH = YES
+PARALLEL PROCESSORS = {{ ncsize }}
 /
 /----------------------------------------------
 /  GENERAL INFORMATIONS - OUTPUTS
diff --git a/pyposeidon/misc/telemac2d.json b/pyposeidon/misc/telemac2d.json
index 71eef1a2..a319b0ce 100644
--- a/pyposeidon/misc/telemac2d.json
+++ b/pyposeidon/misc/telemac2d.json
@@ -9,6 +9,7 @@
     "restart_file": "restart_2D.slf",
     "restart_tstep": -1,
     "title": "TELEMAC 2D Model",
+    "ncsize": 1,
     "tstep_graph": 12,
     "tstep_list": 6,
     "tstep": 300,
diff --git a/pyposeidon/telemac.py b/pyposeidon/telemac.py
index af01a843..99c68553 100644
--- a/pyposeidon/telemac.py
+++ b/pyposeidon/telemac.py
@@ -638,6 +638,7 @@ def __init__(self, **kwargs):
         # specific to meteo grib files
         self.gtype = get_value(self, kwargs, "meteo_gtype", "grid")
         self.ttype = get_value(self, kwargs, "meteo_ttype", "time")
+        self.ncsize = get_value(self, kwargs, "ncsize", 1)
         # convert -180/180 to 0-360
         self.convert360 = get_value(self, kwargs, "meteo_convert360", False)
 
@@ -696,6 +697,7 @@ def config(self, config_file=None, output=False, **kwargs):
         params["nb_tsteps"] = int(duration / tstep)
         params["tstep_graph"] = int(3600 / tstep)
         params["tstep_list"] = int(3600 / tstep)
+        params["ncsize"] = self.ncsize
 
         # tide
         if self.tide: