diff --git a/communication_techniques/lancement.sh b/communication_techniques/lancement.sh
index c242329..52b5b93 100755
--- a/communication_techniques/lancement.sh
+++ b/communication_techniques/lancement.sh
@@ -105,20 +105,24 @@ for nbProd in $nbProdList ; do
 	for typeProd in $typeProdList; do
 		for typeCache in $typeCacheList ; do
 			for bin in $binList ; do
-				if [ "$typeProd" = "useless_loop" ]
-				then
-					case $bin in
-						"jikes_barrier_comm" | "asm_cache_comm" | "c_cache_comm" )
-							for argTypeProd in `seq 1 50 5` ; do
-								function_run ;
-							done ;;
-						* ) argTypeProd=1 ;
-							function_run ;;
-					esac
-				else
-					argTypeProd=1 ;
-					function_run ;
-				fi
+				case $typeProd in
+					"useless_loop" )
+						case $bin in
+							"jikes_barrier_comm" | "asm_cache_comm" | "c_cache_comm" )
+								for argTypeProd in `seq 1 50 5` ; do
+									function_run ;
+								done ;;
+							* )
+								argTypeProd=1 ;
+								function_run ;;
+						esac ;;
+					"matrice" )
+						argTypeProd=16 ;
+						function_run ;;
+					* )
+						argTypeProd=1 ;
+						function_run ;;
+				esac
 			done
 		done
 	done