An Optical Interconnection Network with Parallel Optical Links for Multiprocessor Cluster System of 256 nodes

摘要

An optical interconnection network with parallel optical links for multiprocessor cluster system of 256 nodes is described. There are 16 subsystems in the system, in which each subsystem includes 16 computers and an optical fiber-ribbon interconnection plate of 16 x 16 crossbar interconnection network with VCSEL-based optoelectronic interface. An optical data rate between computers is 5Gb/s which is transmitted by the optical fiber- ribbon based parallel optical data links with 4 channels at data rates of 1.25Gb/s per channel. Every interface between optical interconnection network and each computer includes 16 x 4 VCSEL pixels, 16x4 PIN pixels and (1 x l6) x 4 electrical switch. The whole optical interconnection network is composed of two level optical networks, There are sixteen optical fiber-ribbon interconnection plates of 16 x 16 crossbar interconnection network in the bottom level. The top level optical interconnection network would be an optical fiber-ribbon interconnection plate with a total of 2048 data channels propagating for communication of 16 subsystems.