Design and Implementation of Relay Nodes in SBC Multi-display System

Abstract

AbstractMulti-display systems use virtualization technology to create single large screens that allow multiple people to view high-resolution videos and images simultaneously. As such, they are often used in conjunction with high-performance computer systems to visualize simulation results. However, multi-display systems also tend to be expensive to construct because they generally require high-performance computers. To overcome this limitation, our previous study proposed a multi-display system consisting of one head node and multiple display nodes constructed using single-board computers (SBCs). Unfortunately, increasing the number of displays in a multi-display system also increases the processing load on the head node, which eventually produces a bottleneck that slows the whole system. Therefore, this study proposes the introduction of relay nodes between the head and display nodes as a way to distribute and parallelize the image frame processing task. Herein, we show that our method can reduce the head node’s central processing unit (CPU) usage while also providing sufficient margin in the relay node CPU utilization rates. These evaluation results demonstrate that system bottlenecks can be eliminated by implementing relay nodes and performing distributed parallel processing in multi-display systems.KeywordsMulti-display systemSingle-board computerLoad distribution