公开(公告)号：US20230018857A1

公开(公告)日：2023-01-19

申请号：US17947642

申请日：2022-09-19

申请人： Martin Power ,  Conor Byrne ,  Niall Hanrahan ,  Deepak Abraham Mathaikutty ,  Arnab Raha ,  Raymond Jit-Hung Sung ,  David Thomas Bernard ,  Kevin Brady ,  Martin-Thomas Grymel

发明人： Martin Power ,  Conor Byrne ,  Niall Hanrahan ,  Deepak Abraham Mathaikutty ,  Arnab Raha ,  Raymond Jit-Hung Sung ,  David Thomas Bernard ,  Kevin Brady ,  Martin-Thomas Grymel

IPC分类号： G06N3/04 ,  G06N3/08

摘要： Sparsity processing within a compute block can be done on unpacked data. The compute block includes a sparsity decoder that generates a combined sparsity vector from an activation sparsity vector and a weight sparsity vector. The activation sparsity vector indicates positions of non-zero valued activations in an activation context. The weight sparsity vector indicates positions of non-zero valued weights in a weight context. The combined sparsity vector comprises one or more zero valued bits and one or more non-zero valued bits. The sparsity decoder may determine the position of a non-zero valued bit in the combined sparsity vector and determine an address for the non-zero valued activation and the non-zero valued weight based on the position of the non-zero valued bit. The non-zero valued activation and the non-zero valued weight may be provided to a PE for performing MAC operations.