Home exercise 3

Topic: Multicast, design

Group work with groups of up to 3 people is allowed.


The application is based on the cooperation of a fixed group of N
processes; each of these is located on its own node, and the links
between the nodes are rather slow. Available for interprocess
communication are send/receive operations with the syntax

     send <message> to <recipient>
     receive <message> from <sender>

You can freely choose any combination of the persistence /
synchronization alternatives, but always give the reasons for your
choice.  Using these operations, how would you implement a reliable
multicast operation, intended for the application layer; the syntax of
the operation is "multicast <message> to <list_of_recipients>" ?  The
operation should be as efficient as possible. Hence, compare
alternative solutions, and give the reasons for your choice.