Multiprocessor node interconnection system and server

The invention relates to the field of servers, and discloses a multi-processor node interconnection system, which comprises at least two computing nodes, and each computing node comprises a plurality of processors; the computing nodes are connected through cables and communicate with each other through an OpenCAPI bus. Therefore, in the technical scheme provided by the invention, the interconnection bus full path of the processor between different nodes is realized by the high-speed cable, and wiring on the calculation board PCB is not needed, so that the loss in the data transmission process is reduced, and the transmission distance between the nodes is prolonged. And communication among different computing nodes is realized by using an OpenCAPI bus, so that the signal transmission speed of multiple processors and the operational capability of a multiprocessor interconnection system are improved. In addition, the invention further provides a server which comprises the multiprocessor node interconnection syst