在运行不同操作系统的服务器上设置高性能计算群集

In my lab, we have several servers used for the simulation programs, but they worked independently. Now I want to combine them to become a cluster using MPICH to make them communicate. But there exists a problem, which is that these servers have different OSs. Some of them are Redhat, and some of them are Ubuntu. And on the homepage of MPICH, I saw that download sites of these two different operating systems are different, so will it be possible to set up a cluster with different operating system? And how to do it?In my lab, we have several servers used for the