The DLP target machine

is assumed to be a parallel processor consisting of a limited number (less than 100, say) of processor nodes that are connected with each other by a packet switching network, in such a way that the distance between each node never exceeds a fixed number (3 or 4) of intermediate nodes. For reasons of optimal utilization such machines are considered to support coarse grain parallelism, which means that the ratio of communication and computation must be in favor of the latter.