Hardware OS Communication Service and Dynamic Memory Management for RSoCs

In a multiprocessor system, to gain the advantages of parallelism, efficient communication and memory management are highly required. The recent developments in the partial and dynamic Reconfigurable Computing (RC) domain require better ways to manage the simultaneous task execution. However, the requirements are bit different from the traditional software based systems. In this context, Operating System (OS) services like scheduling, placement, inter-task communication have been developed to make such platforms flexible and self-sufficient. In this paper we focus on the run-time communication service and dynamic memory management in the Reconfigurable System-on-Chips (RSoCs). We demonstrate the requirements and advantages of having a local memory task or a dynamically configurable memory task, how the communication service along with the DRAFT Network on Chip efficiently supports it. Compared to RECONOS [1], our proposal provides 3× more throughput along with flexibility and scalability.