Ring coupling method for information processor.

摘要

The invention relates to methods which make it possible to increase the transfer speed between processor cards of a data processing system, linked in addition via a bus of the VME type, by linking them via a ring link. It consists in defining a global addressing space in the set of memories (104) associated with the processors (103) linked to the ring via coupling members (105). The data or the system events are transferred from one processor to another in the form of pairs of words, the first of which is an addressing word and the second a data word or a system event word. The addressing word comprises a part which defines a page contained in one or more physical memories, and a second part which defines the relative address in this page. A regulation system (401-404) makes it possible to avoid a processor monopolising all the transmission capacity. It makes it possible to construct a data processing system in which the processing is distributed over a large set of processors, without any reduction in speed due to holdups during transfer of data between these processors. <IMAGE>