Added dummy wrapper if no MPI is used
Added dummy wrapper if no MPI is used

hlkline/SU2,srange/SU2,hlkline/SU2,srange/SU2,srange/SU2,hlkline/SU2,hlkline/SU2,drewkett/SU2,drewkett/SU2,drewkett/SU2,hlkline/SU2,drewkett/SU2,srange/SU2,drewkett/SU2