Processor Communications

Portable message passing systems,

• Message Passing Interface (MPI),
• Parallel Virtual Machine (PVM),

can operate on heterogeneous networks.

For example,

    Send(to_pid,buffer,length)   ! Send buffer
    Recv(from_pid,buffer,length) ! Receive buffer
    Bcst(from_pid,buffer,length) ! Broadcast buffer
    Barrier()                    ! Synchronise

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