Cpu/ram config for ansilbe host when deploy on hundreds of nodes

Hi guys,

I have a cluster of hundreds of nodes on cloud, and have a dedicated VM for ansible.

I wonder what kind of cpu/memory should be prepared for ansible host. Shall it depend on number of nodes or playbook content?

There is some useful link, however, my question would be is there recommended value for ansible host.

https://groups.google.com/forum/#!searchin/ansible-project/cpu/ansible-project/ucjQWqmZXJo/-P7frafDCQAJ

https://groups.google.com/forum/#!searchin/ansible-project/cpu/ansible-project/XhUkeT44cQY/LmIxermkJgAJ

Thanks a lot.