Execute tasks on multiple hosts in parallel which fall under different group

[Shwetha Hadimani]

Hi,

I want to execute tasks on multiple hosts in parallel which fall under different group. I have a host file which looks like below,

[groupa]

10.0.1.29

[groupb]

10.0.1.45

[groupc]

10.0.1.56

My playbook looks like below,

---

  - hosts: groupa

    roles:

      - role : role1

  - hosts: groupb

    roles: 

      - role: role2

   - hosts: groupc

     roles: 

       - role: role3

I feel this structure will execute sequentially, but I want to run different tasks on groupa, groupb and groupc but at the same time

                 | ---- groupa ---- task1

playbook -- | ---- groupb ---- task2

                 | ---- groupc ---- task3

Is this kind of parallel execution possible through ansible. 

Thank you.