Added a function to get maximum over the entire domain.

Partition.py

@@ -543,3 +543,8 @@ class partition :
             ERROR("Unforessen rank for variable to summed over the core region.")
             sys.exit()
         return y
+    #
+    # Function to find max value over the entire domain
+    #
+    def domainmax(self, x) :
+        return max(self.comm.allgather(x))

RoutingPreProc.py

@@ -139,7 +139,7 @@ else :
 #
 nbpt = len(sub_index)
 sub_pts = np.array(list(len(sub_index[i][0]) for i in range(len(sub_index))))
-nbvmax = max(sub_pts)
+nbvmax = part.domainmax(max(sub_pts))
 print("nbpt : ", nbpt)
 print("nbvmax : ", nbvmax)
 print("nbasmax : ", nbasmax)