diff --git a/trunk/paradiseo-peo/src/core/runner.cpp b/trunk/paradiseo-peo/src/core/runner.cpp
index 54d07deea..36f80a49c 100644
--- a/trunk/paradiseo-peo/src/core/runner.cpp
+++ b/trunk/paradiseo-peo/src/core/runner.cpp
@@ -107,6 +107,7 @@ void initializeContext ()
 
   num_local_exec_runners = 0;
 
+  synchronizeNodes ();
   // setting up the execution IDs & counting the number of local exec. runners
   for (unsigned i = 0; i < the_runners.size (); i ++)
     {
diff --git a/trunk/paradiseo-peo/test/t-Mpdallexit.cpp b/trunk/paradiseo-peo/test/t-Mpdallexit.cpp
index 57d4d66dd..3772c8e15 100644
--- a/trunk/paradiseo-peo/test/t-Mpdallexit.cpp
+++ b/trunk/paradiseo-peo/test/t-Mpdallexit.cpp
@@ -35,8 +35,9 @@
 */
 
 #include <iostream>
+#include <stdlib.h>
 
 int main (int __argc, char *__argv[])
 {
-  system("mpdallexit");
+  int success = system("mpdallexit");
 }
diff --git a/trunk/paradiseo-peo/test/t-Mpdboot.cpp b/trunk/paradiseo-peo/test/t-Mpdboot.cpp
index 83b2637ac..01611baf5 100644
--- a/trunk/paradiseo-peo/test/t-Mpdboot.cpp
+++ b/trunk/paradiseo-peo/test/t-Mpdboot.cpp
@@ -35,8 +35,9 @@
 */
 
 #include <iostream>
+#include <stdlib.h>
 
 int main (int __argc, char *__argv[])
 {
-  system("mpdboot");
+  int success = system("mpdboot");
 }