Advanced parallel array processor I/O connection

A fast I/O for a multi-PME computer system provides a way to break into a network coupling to alternate network couplings. The system coupling is called a zipper. Our I/O zipper concept can be used to implement the concept that the port into a node could be driven by the port out of a node or by data coming from the system bus. Conversely, data being put out of a node would be available to both the input to another node and to the system bus. Outputting data to both the system bus and another node is not done simultaneously but in different cycles. The zipper passes data into and out of a network of interconnected nodes is used in a system of interconnecting nodes in a mesh, rings of wrapped tori. such that there is no edge to the network, the zipper mechanism logically breaks the the rings along a dimension orthogonal to the rings such that an edge to the network is established. The coupling dynamically toggles the network between a network without an edge and a network with an edge. Data passes into the network or out of the network through the edge when it is active, and the coupling permits dispersal of data entering the network or collection of data leaving the network such that the data rate through the edge matches both the sustained and peak data rates of the system external to the network.