make rpc call to duplicate servers

Hello everyone, 
I am working on a news group using rpc.  I have multiple duplicate
servers to ensure reliability.
I use the rpc function clnt_broadcast to get all the running servers. 
What I need is to use some other broadcast function if possible to
broadcast every function call to all running servers.  What I am
actually doing, is using the list of servers returned by
clnt_broadcast to call every server at a time in order to make any
operation.
If you know any better way or function that can help me execute my
operations on all running servers at the same time without having to
search for them every time, it will really help me a lot.
Thank you,