Set pid so that SU2 resource usage is monitored not the Python script

Author: alahiff

examples/SU2/SU2.py

@@ -36,6 +36,7 @@
                             metadata[attr] = line.split('%s= ' % attr)[1].strip()
 
     run = Run()
+    run.set_pid(pid)
     run.init(metadata=metadata, tags=['SU2'],
              description='SU2 tutorial https://su2code.github.io/tutorials/Inviscid_ONERAM6/')