Tomcat load balancing

[Chetan Chheda]

Hello folks, 

     I have 2 resource hungry processes that need to run on 2 separate tomcats. 
I have setup mod_jk to load balance between the 2 tomcats, but sometimes they 
end up on the same one. Is there a way to guarantee they run on separate 
tomcats? 

     Is there an option to do "load" based load balancing?

THanks,
Chetan