An optoelectronic design of the simultaneous optical multiprocessor exchange bus (SOME-Bus)

Low latency, high bandwidth interconnection networks that directly link arbitrary pairs of processing elements without contention are very desirable for parallel computers. The Simultaneous Optical Multiprocessor Exchange Bus (SOME-Bus) based on a fiber optic interconnect is such a network. The SOME-Bus provides a dedicated channel for each processor for data output and thus eliminates global arbitration. Each processor can receive data simultaneously from all other processors in the system using an array of receivers. The architecture allow for simultaneous multicast and broadcast messages using several processors with zero setup time and no global scheduling.