Research On Architecture Of Optical Switch Array For High Performance Computer

With the continuous development of high-performance computers, theinterconnection network for the enhancement of the overall performance is increasinglyimportant. Electric interconnection network is unable to satisfy the the needs of theinterconnection network performance because of its low bandwidth, high delay and lowinterconnect density, and becomes one of bottlenecks of the constraints ofhigh-performance computer further improvement. We have to find a new interconnectway to solve the problem. As a new way, optical interconnect has many advantages,such as a high degree of parallelism, anti-interference ability, high-bandwidth,low-power comsumption and so on. Optical interconnect applications have beenapproved, the research on optical interconnect technology is constantly evolvingprogress.In the optical interconnection, optical switching array is the core unit to control theoptical path. Right now, the analysis of the design of Optical switching array is based onthe network topology or routing algorithm, but the research on the characteristics ofOptical switching array itself is insufficient. Especially in the design method, there is nogeneric method to design the structure of optical switching array to adapt to differentnetwork structures.In this paper, to solve the problems mentioned above, we analysis the opticalswitching array application environment and the function of different types of opticalswitching array should have, complete the following work:1We design the CCOS(Completely-Connect Opitcal Switch)Optical switching arreystructure which can achieve the Completely-Connect function like Crossbar, andsignificantly reduce the number of its hardware cost and insertion loss, which is provedin both theoretical and experimental;2Make a further expansion of the CCOS structure for the N×N scale, and give theproof of its nature of Completely-Connect; Focus on the research on the minimumnumber of related hardware of the optical switching array of different scale, providing atheoretical basis and standard for the optimized design of optical switching array, andproviding a basis for the realization of the more large-scale network structure;3Analysis the Optical switching array characteristics of different functionalrequirements, particularly the difference between N×N completely-connected withN-port fully-connected optical switching array. And starting from the existing structure,analysis the design of the different array structures, and provide a generic designmethod of optical switching array for different network needs, making a greatsignificance to improve the performance of the optical switching array and build a newnetwork topology structure.