Using OpenStack Controller as Compute Node

Hi,
Can OpenStack Controller node be used as compute node as well? I mean I have installed openstack using packstack and no configuration changes done. I want to deploy an instance of VM in the same server. Can any one suggest on the steps to be followed.
I am planning to use Red Hat OpenStack Platform as VIM for a NFV testing. Here I am using NFV MANO called Rift.Ware. It's installation is supposed to be done in the same server as Openstack controller. I