Reducing communication latency with path multiplexing: in optically interconnected multiprocessor systems
Proceedings of 1995 1st IEEE Symposium on High Performance Computer Architecture (1995)
Raleigh, North Carolina
Jan. 22, 1995 to Jan. 25, 1995
Chunming Qiao , Dept. of Electr. & Comput. Eng., State Univ. of New York, Buffalo, NY, USA
R. Melhem , Dept. of Electr. & Comput. Eng., State Univ. of New York, Buffalo, NY, USA
A physical link can be time-multiplexed to create several time slots, each of which corresponding to a virtual link. A conventional approach establishes a connection along a path using a set of independent time slots (or virtual links) and thus requires the use of switching devices capable of interchanging time slots. This paper proposes a different approach to all-optical Time Division Multiplexed (TDM) communications in multiprocessor systems. The idea is to establish a connection along a path using a set of time slots (or virtual links) that are dependent on each other, so that no time-slot interchanging is required. It is found that, despite of the possibility that establishing a connection may take a longer time, the proposed approach will result in lower overall communication latency as it eliminates the delays introduced by the time-slot interchanging switching devices.
multiprocessor interconnection networks; time division multiplexing; communication complexity; optical interconnections; communication latency; path multiplexing; optically interconnected multiprocessor systems; virtual link; switching devices; all-optical time division multiplexed communications; virtual links; time-slot interchanging switching devices
C. Qiao and R. Melhem, "Reducing communication latency with path multiplexing: in optically interconnected multiprocessor systems," Proceedings of 1995 1st IEEE Symposium on High Performance Computer Architecture(HPCA), Raleigh, North Carolina, 1995, pp. 34.