公开(公告)号：US11463102B2

公开(公告)日：2022-10-04

申请号：US17162153

申请日：2021-01-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chao Lu ,  Baoqing Liu ,  Leijun He

IPC: H03M7/00 ,  H03M7/30

Abstract: In the data compression method, a raw data block in raw data is processed based on a compression algorithm to obtain a standard compressed data block that has a length of L2 and that corresponds to the raw data block, and the raw data is further compressed into one or more standard compressed data blocks that each have the length of L2 and that are to be decompressed in parallel by a decompression apparatus, where the decompression apparatus includes a plurality of decompression engines, and each decompression engine is capable of decompressing one standard compressed data block within one processing cycle. According to the data compression method, a standard compressed data block with a fixed length can be obtained through compression.

公开(公告)号：US11960421B2

公开(公告)日：2024-04-16

申请号：US17216476

申请日：2021-03-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Baoqing Liu ,  Hu Liu ,  Qinglong Chen

IPC: G06F13/28 ,  G06F17/16 ,  H03M7/30

CPC classification number: G06F13/28 ,  G06F17/16 ,  H03M7/30

Abstract: The present disclosure discloses example operation accelerators and compression methods. One example operation accelerator performs operations, including storing, in a first buffer, first input data. In a second buffer, weight data can be stored. A computation result is obtained by performing matrix multiplication on the first input data and the weight data by an operation circuit connected to the input buffer and the weight buffer. The computation result is compressed by a compression module to obtain compressed data. The compressed data can be stored into a memory outside the operation accelerator by a direct memory access controller (DMAC) connected to the compression module.