Network structure on non-blocking optical section and communication method thereof

Abstract

The invention discloses a network structure on a non-blocking optical section and a communication method thereof, and mainly solves the problems that information waiting time delay in a network is large and the network is blocked on the existing optical section. The network structure comprises 64 processor cores and 64 optical routers, novel non-blocking optical routers are used in the network, and the optical routers are interconnected to form an optical router network in a novel mode. The communication method comprises the following steps: (1) establishing a coordinate system; (2) determining the parameters: a source processor core coordinate, a target processor core coordinate and a wavelength used for sending optical information; (3) sending the optical information; (4) transmitting the optical information in the optical router network; (5) judging whether the optical information reaches the target optical router or not; and (6) receiving the optical information. The invention has the advantages of small communication time delay, not blockage in the network and large throughput, and is suitable for the interconnection and communication between network processor cores on the optical section.

Description

technical field [0001] The invention belongs to the technical field of communication, and further relates to a non-blocking optical network-on-chip network structure and a communication method thereof in the technical field of optical network-on-chip communication. The optical on-chip network network structure of the present invention can be used for optical interconnection between the cores of the network processors on the optical chip; the communication method can be used to set how to communicate between the cores of the network processors on the optical chip. Background technique [0002] In the optical network on chip, because it is difficult to store optical information, the optical-electrical hybrid optical network-on-chip is generally used to realize the communication between processor cores. The non-blocking transmission in the router relieves the blocking of optical information transmission in the network. [0003] A patent application filed by Xi'an University of...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is: during the period from when the electrical control network sends the electrical link construction information to reserve the optical link to when the optical information transmission is completed, other processor cores cannot use the reserved optical link even though they are idle. The resource utilization rate of the network is low, and the information waiting delay is long, which aggravates the blocking problem in the network, which further affects the overall performance of the network on the optical chip; the microring resonator and waveguide used in the optical router structure used in the network Many, the structure is complex, and the energy consumed by optical information in the transmission process is relatively large

The disadvantages of this structure are: first, there are many waveguide crossing points in the overall structure of the optical router, the structure is complex, and the insertion loss of the optical router is relatively large, resulting in relatively large energy consumption of optical information during transmission; second, Because a single wavelength is used in the optical router structure, when there are multiple input ports competing for the same output port at the same time, only one input port to one output port can be communicated. The bandwidth of the optical router is low, the communication delay is large, and the throughput Small; Third, the network structure on the mesh optical chip lacks certain adaptability due to poor path diversity, and congestion is prone to occur in the network

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