公开(公告)号：US20230236891A1

公开(公告)日：2023-07-27

申请号：US18191134

申请日：2023-03-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chen XIN ,  Honghui YUAN ,  Chun Hang LEE

IPC: G06F9/50 ,  G06F17/14 ,  G06F7/523 ,  G06F7/78

CPC classification number: G06F9/5027 ,  G06F17/144 ,  G06F7/523 ,  G06F7/78

Abstract: A neural network accelerator is provided, including: a preprocessing module (301), configured to perform first forward winograd transform on a target matrix corresponding to an input feature map, to obtain a transformed target matrix, where the preprocessing module (301) is further configured to perform second forward winograd transform on a convolution kernel, to obtain a transformed convolution kernel; a matrix operation module (302), configured to perform a matrix multiplication operation on a first matrix and a second matrix, to obtain a multiplication result, where the first matrix is constructed based on the transformed target matrix, and the second matrix is constructed based on the transformed convolution kernel; and a vector operation module (303), configured to perform inverse winograd transform on the multiplication result, to obtain an output feature map.