fix the SAMP tests' params

Change-Id: I1eb082532527ce249493023231012f0c1391f42a
diff --git a/TestON/tests/SAMP/SAMPstartTemplate_3node/SAMPstartTemplate_3node.params b/TestON/tests/SAMP/SAMPstartTemplate_3node/SAMPstartTemplate_3node.params
index fe36d6e..41adb4c 100755
--- a/TestON/tests/SAMP/SAMPstartTemplate_3node/SAMPstartTemplate_3node.params
+++ b/TestON/tests/SAMP/SAMPstartTemplate_3node/SAMPstartTemplate_3node.params
@@ -15,7 +15,10 @@
         <pull>False</pull>
         <branch>master</branch>
     </GIT>
-
+    <GRAPH>
+        <nodeCluster>VM</nodeCluster>
+        <builds>20</builds>
+    </GRAPH>
     <CASE0>
         <gitPull>False</gitPull> # False or True
         <gitBranch>master</gitBranch>