System for selectively packing together datablocks and efficiently routing independent of network topology in a parallel computer system in accordance with a selected numbering system

摘要

A method for routing multiple message packets to their respective destinations on a parallel system is disclosed which takes into account the value of the communication start-up time and the transmission time For the specific parallel system. The preferred embodiment involves first selecting a base using the parameters of communication start-up and transmission time and then for each datablock, subtracting the node address from the destination address of the datablock using the modulo-n subtractions to Form a relative offset and representing the relative offset in the pre-selected base before sending the datablocks to their destination nodes in phases, each phase involving scanning the individual i-th digits of the relative offset value and packing those datablocks with identical i-th digits of the relative offset together.