hCODE 2.0: An open-source toolkit for building efficient FPGA-enabled clouds

Major cloud service providers have started employing field-programmable gate arrays (FPGAs) to implement high-performance and low-power-consumption cloud capability. However, building or utilizing an FPGA-enabled cloud is still challenging due to the lack of fundamental tools. In our previous work, we proposed an hCODE base system for managing portable accelerator IPs on different hardware. In this paper, we extend the previous work and introduce the hCODE 2.0, which is an open-source toolkit for building efficient FPGA-enabled clouds. First, we provide a fundamental toolkit to simplify HW project management and FPGA management at a cluster scale. Second, we implement on-chip resource virtualization and accelerator scheduling capabilities to show possibilities of improving FPGA utilization efficiency with our tools.