I want to conduct test on 12 load controllers each 50 users. Total 600 users. How to integrate all the results from different controllers.
What you want to do violates the community edition EULA.
The community edition is meant to evaluate the product capabilities to decide whether or not to purchase it.
The community license also allows running up to 50 Vusers with no expiration date. But taking the community edition and deploying it on multiple machines to drive a larger workload is a violation.
There is no way to merge results. We used to have an internal tool for that, and we shared it with customers on some occasions, but it was an internal development which was never productized to become in customer level quality.
This tool does not exist anymore