基于PCIe交叉开关的可重构计算系统设计

Design of Interconnection Reconfiguration Computing System Based on PCIe Switch

针对服务器、数据中心中异构资源的高效互联要求,提出一种基于PCIe交叉开关实现的互联可重构计算系统。通过内部交叉开关和远程交叉开关的层次化硬件结构,实现基于地址的异构设备之间的高效访问,并借助交叉开关端口配置功能实现计算系统异构硬件资源间的连接重构。搭建可重构计算原型系统,测试验证PCIe的非透明桥、透明桥互联和端口重构配置能力,支撑可重构计算系统低延迟、高灵活性的互联通信。

To meet the demands of efficient interconnection network for server and data center, this paper presents a design of interconnection reconfiguration computing system based on PCIe switch. The local and remote PCIe switch were used to establish a hierarchy architecture, which can extend an efficient address-based access. Through the configuration of the PCIe switch, the interconnection of the heterogeneous computing system can be reconfigured. A prototype system was established to test the TB、NTB interconnection and port reconfiguration. Experiments prove the design can support the low latency, high flexibility connection for reconfiguration computing system.