公开(公告)号：US20220405553A1

公开(公告)日：2022-12-22

申请号：US17833402

申请日：2022-06-06

Applicant: Meta Platforms Technologies, LLC

Inventor： Ziyun Li ,  Xinqiao Liu ,  Yiming Gan

IPC: G06N3/04 ,  G06N3/063 ,  H04N5/351 ,  H04N5/378 ,  G06F9/50

Abstract: In one example, an apparatus comprises: a memory to store input data and weights, the input data comprising groups of data elements, each group being associated with a channel of channels, the weights comprising weight tensors, each weight tensor being associated with a channel of the channels; a data sparsity map generation circuit configured to generate, based on the input data, a channel sparsity map and a spatial sparsity map, the channel sparsity map indicating channels associated with first weights tensors to be selected, the spatial sparsity map indicating spatial locations of first data elements; a gating circuit configured to: fetch, based on the channel sparsity map and the sparsity map, the first weights tensors and the first data elements from the memory; and a processing circuit configured to perform neural network computations on the first data elements and the first weights tensors to generate a processing result.