Modeling distributed systems: Shared Memory and Message Passing RAM RAM RAM M RAM RAM RAM RAM RAM 1 Shared memory: Message passing: Processors exchange information Nodes exchange information via via read/write shared registers. send/receive messages to/from neighbours. Modeling distributed systems: Shared Memory and Message Passing Shared memory: Processors exchange information via read/write shared registers. Message passing: Nodes exchange information via send/receive messages to/from neighbours