Research Of Three-dimensional Network For Specific Application

With the advent of various application areas such as cloud computing, big data and so on, the scale of interconnection network is becoming more and more large to fit a massive data calculation and communication services. It is confronted with the signal integrity, power leaks and clock synchronization caused by planar extended physical limitations with the expansion of the size of two-dimensional network. This has led to the sharp increase in the design complexity and cost of network architecture, thus it is difficult to meet the increasing application requirements. Three-dimensional network structure becomes an ideal alternative. For different applications, we should consider various factors when designing three-dimensional network structure. This thesis summarizes the background and development of manycore and acceleration, and conducts a research on the three-dimensional network architecture based on the demands of two specific application. Our research achievements are shown as follows.1. The designing of manycore interconnection network based on 3D IC using TSV technology to implement interconnection between layers, but the use of large amount of TSV will lead to the result that the yield of manycore chip cannot be guaranteed. Consequently, this thesis presents a three-dimensional network structure based on partial overlapped clusters, this topology can significantly boost the yield of the manycore chip interconnection network on the basis of not increasing the complexity of IC design, while maintaining overall network performance of manycore chip. Furthermore, simulations and analysis of the topology is built based on OPNET simulation software, the evaluation results indicate that the topology can achieving a satisfactory network performance.2. Hardware acceleration gradually widely used in the field of information technology such as search engines, document image processing, biology gene sequence and so on. Facing continuously enriching of accelerating business and wide use of virtualization, accelerator interconnect technology becomes the key problem to be solved. This thesis mainly study the network performance of interconnection network based on three-dimensional torus under accelerating applications, and compare the performance of two-dimensional network architecture. The results show that three-dimensional network structure has obvious advantages in the characteristics of adapting to acceleration applications.