Multiple channel architecture: a new optical interconnection strategy for massively parallel computers

A parallel processing architecture based on multiple channel optical communication is described and compared with existing interconnection strategies for parallel computers. The proposed multiple channel architecture (MCA) provides a large number of independent, selectable channels (or virtual buses) using a single optical fiber. Arbitrary interconnection patterns and machine partitions can be emulated via appropriate channel assignments. Hierarchies of parallel architectures and simultaneous execution of parallel tasks are also possible. The authors describe previous attempts in processor, memory, and input/output device interconnection, a basic overview of the proposed architecture, various channel allocation strategies that can be utilized by the MCA, and a summary of advantages of the MCA compared with traditional interconnection techniques