Index: sources/test_regression/30032005b/system.cpp
===================================================================
--- sources/test_regression/30032005b/system.cpp	(revision 55)
+++ sources/test_regression/30032005b/system.cpp	(revision 60)
@@ -74,4 +74,6 @@
         s15("s15");
 
+    // Setup number of threads open-mp to 1 with the macro threads_omp()
+    threads_omp();
 
     M1_1i1o a("a");