Adding medium scalability test

Jenkins_mpi_med_scal_test

+#!groovy
+
+"cifarm-ubuntu-node" : {node ('cifarm-ubuntu-node')
+{
+  deleteDir()
+  checkout scm
+  stage ('build ubuntu')
+  {
+    sh "./build.sh $WORKSPACE $NODE_NAME pdata"
+  }
+
+  stage ('run ubuntu')
+  {
+    sh "./run.sh $WORKSPACE $NODE_NAME 5"
+    sh "./run.sh $WORKSPACE $NODE_NAME 6"
+    sh "./run.sh $WORKSPACE $NODE_NAME 7"
+    sh "./run.sh $WORKSPACE $NODE_NAME 8"
+    sh "./run.sh $WORKSPACE $NODE_NAME 9"
+    sh "./run.sh $WORKSPACE $NODE_NAME 10"
+    sh "./run.sh $WORKSPACE $NODE_NAME 11"
+  }
+}
+