Crossbar switch scheduling method and device

The invention provides a crossbar switch scheduling method and device, and the method comprises the steps: granting all input ports which initiate path resource requests in a current scheduling time slot in each output port of a virtual channel, and maintaining a corresponding rotation pointer at each output port; when a plurality of input ports receive the output port at the same time, the finally received input port is determined according to the rotation pointer corresponding to the output port, the determined input port is matched with the output port, and the rotation pointer is updated at the same time; and according to the output port information of the path resource requests, remapping all the requests to corresponding output port queues according to a time sequence. According to the technical scheme, the scheduling delay is shortened, and the scheduling stability is improved. 本发明提供了一种交叉开关调度方法和装置，该方法包括：在虚拟通道的每个输出端口中对当前调度时隙内所有发起路径资源请求的输入端口均发起授予，并在每个输出端口维护对应的轮转指针；当多个输入端口同时接受所述输出端口时，根据所述输出端口对应的轮转指针确定最终接受