Hi, 

I am working on a clustering initiative that allows for processes to be 
swapped from one machine to another.  The idea is for load balancing 
processes in a NUMA like approach.  

What I had thought was to bury the cluster ID in the high order byte of 
the process ID so that whenever a system call was made any such byte 
greater than 0 would be proxied to the appropriate machine. 

I would accept suggestions on this.   What would break as a result of 
doing this? What were the historical reasons for this,? 

Thanks! 




Andy