1. A processing method for a single-channel convolution layer, comprising: dividing data to be processed into a plurality of data blocks; reading by a plurality of graphic processor thread groups the plurality of data blocks into local memories of the plurality of graphic processor thread groups; reading by the plurality of graphic processor thread groups a plurality of filters into the local memories of the plurality of graphic processor thread groups; and calculating by a plurality of threads in the plurality of graphic processor thread groups convolutions of corresponding data points in the plurality of data blocks and the plurality of filters simultaneously.